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Engine Bolts / Studs

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DISPLAYING 1 to 39 (of 39 products)
Cylinder head stud set of 12. Porsche 911 / 964 / 993 1965-98
Code: 99310117054/1X12
Cylinder head studs.
PACK OF 12
. Normally 24 studs per engine.

oematch

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1994-98

This product supersedes Porsche's old part numbers:
- 99310117051

Solves the problems of loose head studs, The exhaust leak you hear in the 911 may actually be the cylinder head leaking where the studs have pulled loose. As Porsche increased displacement of the 911 engine, the different rates of thermal expansion have caused head studs to break or pull out from the engine case. 

Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.

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Related, superseded, cross reference or alternative numbers for comparison.

99310117054
99310117051
99310117053
99310117054

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About this kit
Kit
Cylinder head stud set of 24. Porsche 911 / 964 / 993 1965-98
Code: 99310117054/1X24
Cylinder head studs.
PACK OF 24
. Normally 24 studs per engine.

oematch

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1994-98

This product supersedes Porsche's old part numbers:
- 99310117051

Solves the problems of loose head studs, The exhaust leak you hear in the 911 may actually be the cylinder head leaking where the studs have pulled loose. As Porsche increased displacement of the 911 engine, the different rates of thermal expansion have caused head studs to break or pull out from the engine case. 

Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99310117054
99310117051
99310117053
99310117054

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About this kit
Kit
Dilavar Head Studs Set of 24. Porsche 911/ 964 / 993 1965-98
Code: DILAVARKIT02
Dilavar Head Studs.
SET OF 24 STUDS (Original Porsche Quality)

oematch

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1994-98

Click picture for large parts diagram.
Diagram Ref No 2.

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DILAVARKIT02
15315
99310117053
99310117051
99310117054

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About this kit
Kit
Engine head stud Dilavar, SET OF 12. Porsche 911 / 964 / 993 1965-98
Code: DILAVARKIT01
Engine head stud, SET OF 12. Dilavar

oematch

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1994-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 11

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DILAVARKIT01
99310117051
99310117053

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About this kit
Kit
Engine Head Studs Porsche 911 / 964 / 993 1965-98 EPS
Code: 99310117054/2X12
Engine Head Studs. PACK OF 12
Normally 24 studs per engine.


eps

Solves the problems of loose head studs, The exhaust leak you hear in the 911 may actually be the cylinder head leaking where the studs have pulled loose. As Porsche increased displacement of the 911 engine, the different rates of thermal expansion have caused head studs to break or pull out from the engine case.

Superior Tested/Proven strength. (compared to Dilavar & Raceware)

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1994-98

This product supersedes Porsche's old part numbers:
- 993 101 170 51

Click picture for large parts diagram.
Diagram Ref No 2.



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99310117054
99310117051
99310117053
99310117354

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About this kit
Kit
Engine Head Studs Porsche 911 / 964 / 993 1965-98 EPS
Code: 99310117054/2X24
ESP Engine Head Studs. PACK OF 24
Normally 24 studs per engine.


eps

Solves the problems of loose head studs, The exhaust leak you hear in the 911 may actually be the cylinder head leaking where the studs have pulled loose. As Porsche increased displacement of the 911 engine, the different rates of thermal expansion have caused head studs to break or pull out from the engine case.

Superior Tested/Proven strength. (compared to Dilavar & Raceware)

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1994-98

This product supersedes Porsche's old part numbers:
- 993 101 170 51

Click picture for large parts diagram.
Diagram Ref No 2.



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99310117054
99310117051
99310117053

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About this kit
Kit
Heat exchanger fitting kit. Porsche 911 65-83
Code: MANIFOLDKIT911E

Exhaust heat exchanger fitting kit. Includes studs and nuts made out of titanium.

These titanium components are resistant to rust and corrosion, which can be a common issue with traditional steel studs and nuts. This corrosion resistance ensures that the studs and nuts maintain their integrity, allowing for easy removal and installation when necessary. They are the perfect upgrade for Porsche enthusiasts who demand the ease of access to vehicle's exhaust system.

rohler

Fits:
Porsche 911 1965-83


About this kit
Kit
Crankcase stud, BM 8 x 108. Porsche 911/ 914-6 / 964 / 993
Code: 99906205102
Crankcase Stud. BM 8 x 108. RIGHT.

porsche

Fits:
Porsche 911 1965-89
Porsche 964 1990-94
Porsche 993 1995-98
Porsche 914-6 1970-76

Click 'Zoom in' for the large parts diagram.
Diagram ref no 7.

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99906205102
99906205102

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Porsche Genuine Parts
Crankcase through bolt kit. Porsche 911 2.0L to 2.7L engines
Code: 90110117300/4
Crankcase through bolt kit. SET OF 11
Porsche 911 2.0L to 2.7L.

arp

Fits:
Porsche 911 2.0L , 2.2L , 2.4L , 2.7L

Related reference numbers
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90110117300
90110117300
204-5407
2045407
90110116101
90110116102
90110116103
99907000402
99907000403

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Special Offer
Crankcase through bolt o-ring. Porsche 911 1965-89
Code: 99970100640/1
Crankcase through bolt o-ring.
24 per engine.

oematch

Fits:
Porsche 911 1965-89

Click 'Zoom in' for large parts diagram.
Diagram ref no 22.

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99970100640
19805
99970100640
999.701.006.40
917.079

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Best Product
Crankcase through bolt washer Porsche 911 1965-89
Code: 90110116103
Crankcase through bolt washer
24 per engine.

porsche

Fits:
Porsche 911 1965-89

Click picture for large parts diagram.
Diagram Ref No 23.

Related reference numbers
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90110116103
90110116101
90110116102

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Porsche Genuine Parts
Crankcase through bolt washer. Porsche 911 1965-89 / 914-6
Code: 90110116103/1
Crankcase through bolt washer.

oematch

Fits:
Porsche 911 1965-89
Porsche 914-6 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref no 23

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90110116103
90110116102
90110116103
90110116100

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Best Product
Crankshaft through bolt washer. Porsche 911 1965-89 / 914-6
Code: 90110116103::1
Crankshaft through bolt washer.

porsche

Fits:
Porsche 911 1965-89
Porsche 914-6 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref no 23

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90110116103
90110116102

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Porsche Genuine Parts
Cylinder head nut. Porsche 911 1965-89
Code: 90110438203
Cylinder head nut.
24 per engine. Price is for each.

porsche

Fits:
Porsche 911 1965-89 all models

Click 'Zoom in' for large parts diagram.
Diagram Ref No 17.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90110438203
90110438202
90110438203
61610438200
53904202
90110438200
93010438201

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Porsche Genuine Parts
Cylinder head nut. Porsche 911 1965-89 / 356 / 912
Code: 90110438203/1
Cylinder head nut.
24 per engine. Price is for each.

oematch

Fits:
Porsche 356B / 356C
Porsche 912
Porsche 911 1965-89 all models

Click 'Zoom in' for large parts diagram.
Diagram Ref No 17.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90110438203
90110438203
90110438202
61610438200
90110438200
93010438201

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Best Product
Cylinder head stud. Porsche 912 / 356B / 356C
Code: 53901118/1
Cylinder head stud. Porsche 912 / 356B / 356C

vintage

Fits:
Porsche 912
Porsche 356 B
Porsche 356 C

Click 'Zoom in' for large parts diagram.
Diagram ref no 2

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53901118
53901118

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Best Price
Cylinder head studs. Porsche 911 / 964 / 993 1965-98
Code: 99310117054/1
Cylinder head studs.
Normally 24 studs per engine. Sold EACH

oematch

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1994-98

This product supersedes Porsche's old part numbers:
- 99310117051

Solves the problems of loose head studs, The exhaust leak you hear in the 911 may actually be the cylinder head leaking where the studs have pulled loose. As Porsche increased displacement of the 911 engine, the different rates of thermal expansion have caused head studs to break or pull out from the engine case. 

Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99310117054
99310117051
99310117053
99310117054

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Best Product
Dilavar head studs. Porsche 911 / 964 / 993 1965-98
Code: 99310117054
Dilavar Head Studs.
Normally 24 studs per engine. Sold EACH

porsche

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1994-98

This product supersedes Porsche's old part numbers:
- 99310117051

Solves the problems of loose head studs, The exhaust leak you hear in the 911 may actually be the cylinder head leaking where the studs have pulled loose. As Porsche increased displacement of the 911 engine, the different rates of thermal expansion have caused head studs to break or pull out from the engine case. These latest Dilavar steel head studs have a thermal expansion rate of approximately the same as the alloy case.

Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99310117054
99310117051
99310117053
99310117054

The product you are viewing cross references to these numbers
Porsche Genuine Parts
Dilavar head studs. Porsche 911 / 964 / 993 1965-98
Code: 99310117054/8
Dilavar head studs. Normally 24 studs per engine.
Sold EACH

oematch

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1994-98

This product supersedes Porsche's old part numbers:
- 99310117051

Solves the problems of loose head studs, The exhaust leak you hear in the 911 may actually be the cylinder head leaking where the studs have pulled loose. As Porsche increased displacement of the 911 engine, the different rates of thermal expansion have caused head studs to break or pull out from the engine case. These latest Dilavar steel head studs have a thermal expansion rate of approximately the same as the alloy case.

Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99310117054
15315
99310117051
99310117053
99310117054

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Best Product
Engine case through bolt set, titanium. Porsche 911 / 964 / 993
Code: SL-TB-

Engine case through bolt set, titanium. 

Kit Contents
Ti Alloy Studs x 11
Ti Alloy Washers x 22
Ti Alloy 12-point Nuts x 11

Porsche Motorsports employed titanium alloy engine case fasteners on many of their famous race cars, including the 904, 908, 935, 962, and some modern LMP2.

silverlake

Fits:
Porsche 911
Porsche 964
Porsche 993

Air-cooled Porsche 911 engine case through bolts in high-strength high-purity Titanium alloy. Including studs, washers, and  nuts.



Related reference numbers
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SL-TB-
90110117300
90110116103
99907000403
93010117306
93010117201
95910117200
95910117302

The product you are viewing cross references to these numbers
Best Price
Engine crankcase stud M8 X 78. Porsche 911 / 964 / 993 / 996T / 997T / 996 GT3 / 997 GT3
Code: 90006010101
Engine crankcase stud M8 X 78. 3 per engine. Price is for each.

porsche

Fits:
Porsche 911 1965-89 all models
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 TURBO / GT3 1998-04
Porsche 997 TURBO / GT3 2005-12
Porsche 914 1970-76


Click 'Zoom in' for large parts diagram.
Diagram Ref No 6.

Related reference numbers
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90006010101
90006010101
99906215602
N0144324

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Porsche Genuine Parts
Engine crankcase stud, BM 10 X 85. Porsche 911 65-77 / 914-6
Code: 99906221701
Engine crankcase stud, BM 10 X 85.

porsche

Fits:
Porsche 911 1965-73
Porsche 911/911S / Carrera 2.7 1974-77
Porsche 914-6 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref no 16

Related reference numbers
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99906221701
99906221701
99906221708

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Porsche Genuine Parts
Engine crankcase stud, BM8FO x 22. Porsche 911 / 914 / 964 / 993 / 996TT / 997TT
Code: 90006010601::/1
Engine crankcase stud, BM8FO x 22. 
Sold each.

oematch

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo 2001-05
Porsche 996 GT3 3.6L 1999-05
Porsche 997.1 Turbo 2007-09
Porsche 997 GT3 3.6L 2006-09
Porsche 914-6 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref no 4

Related reference numbers
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90006010601
99906200702
90006010601

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Best Product
Engine crankcase stud, BM8FO x 22. Porsche 911 / 914 / 964 / 993 / 996TT / 997TT
Code: 90006010601::1
Engine crankcase stud, BM8FO x 22. 
Sold each.

porsche

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo 2001-05
Porsche 996 GT3 3.6L 1999-05
Porsche 997.1 Turbo 2007-09
Porsche 997 GT3 3.6L 2006-09
Porsche 914-6 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref no 4

Related reference numbers
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90006010601
99906200702
90006010601

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Porsche Genuine Parts
Engine crankcase stud, M8 x 52. Porsche 911 / 914 / 964 / 993 / 996TT / 997TT
Code: 90006010201
Engine crankcase stud, M8 x 52. RIGHT.
Sold each.

porsche

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo 2001-05
Porsche 996 GT3 3.6L 1999-05
Porsche 997.1 Turbo 2007-09
Porsche 997 GT3 3.6L 2006-09
Porsche 914-6 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref no 11

Related reference numbers
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90006010201
90006010201
99906213802

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Porsche Genuine Parts
Engine head stud height setter for Porsche 911
Code: SR099
Head stud height setter for Porsche 911

stomski

Precisely set the height of head studs on all the 911 engines using this innovative tool. The Delrin insert protects the engine case from scratches or marring, while the adjustable three-piece anodized aluminium tubular construction provides complete flexibility for all engine setups, tools, and stud combinations.

For all 911s including GT3s.
Best Price
Engine Head Studs Porsche 911 / 964 / 993 1965-98
Code: 99310117054/2
Engine Head Studs Porsche 911 / 964 / 993 1965-98
Normally 24 studs per engine.


eps

Solves the problems of loose head studs, The exhaust leak you hear in the 911 may actually be the cylinder head leaking where the studs have pulled loose. As Porsche increased displacement of the 911 engine, the different rates of thermal expansion have caused head studs to break or pull out from the engine case.

Superior Tested/Proven strength. (compared to Dilavar & Raceware)

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1994-98

This product supersedes Porsche's old part numbers:
- 993 101 170 51

Click picture for large parts diagram.
Diagram Ref No 2.



Related reference numbers
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99310117054
99310117051
99310117053
99310117054

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Best Price
Engine head studs standard. Porsche 911 1965-73
Code: 90110117203
Engine case studs.
24 per engine. Price is for each.

porsche

Fits:
Porsche 911 1965-73
(Not 1973 2.7L Carrera)
Porsche 914-6 1970-72

Click 'Zoom in' for large parts diagram.
Diagram ref No 5

Related reference numbers
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90110117203
91110117200
90110117203

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Porsche Genuine Parts
Engine head studs standard. Porsche 911 1965-73
Code: 90110117203/1
Engine case studs.
24 per engine. Price is for each.

oematch

Fits:
Porsche 911 1965-73
(Not 1973 2.7L Carrera)
Porsche 914-6 1970-72

Click 'Zoom in' for large parts diagram.
Diagram ref No 5

Related reference numbers
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90110117203
91110117200
90110117203

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Best Product
Engine head studs, Set of 24. Porsche 911 / 964 / 993 1965-98
Code: 99310117054/4
Engine head studs. Set of 24 head studs with nuts and washers.

arp

SET OF 24
Head stud kit for Porsche 2.0L-3.8L air-cooled engines

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1994-98

Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.

Related reference numbers
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99310117054
99310117051
99310117053
204-4206
90110117203
91110117200
93010117000
99310117054

The product you are viewing cross references to these numbers
Special Offer
Exhaust head stud in Titanium. Porsche 911 65-83
Code: 90006010601T
Exhaust head stud. Made out of Titanium (Grade 5 Ti-6Al-4V)
Sold each.

rohler

Fits
Porsche 911 1965 - 83

Click 'Zoom in' for large parts diagram.
Diagram ref no 6

Related reference numbers
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90006010601T
90006100701
90006100702
99906200702
90006010601
99906200603

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Best Product
Exhaust head stud kit in Titanium. Porsche 911 / 964 / 993 / 986
Code: TITANSTUDS12
These titanium components are resistant to rust and corrosion, which can be a common issue with traditional steel studs and nuts. This corrosion resistance ensures that the studs and nuts maintain their integrity, allowing for easy removal and installation when necessary. They are the perfect upgrade for Porsche enthusiasts who demand the ease of access to vehicle's exhaust system. 

rohler

• Ultra-high-performance product
• Use of Titanium Ti6Al4V technology

Contains
12 x Studs, Nuts & Washers

Fits:
Porsche 911 1965-77
Porsche 964 (none Turbo)
Porsche 993 All
Porsche 996 (none Turbo)
Porsche 997 (none Turbo)
Porsche 986 All
Porsche 987 All
Porsche 718 4 Cyl Turbo

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TITANSTUDS12
99906200602
99908400201
99908400201
90006010601
99907507100
90037813100
9990750710A
99907507400
90037813100
90007428702
99907353501
99907358901

The product you are viewing cross references to these numbers
Best Product
Exhaust head stud repair kit for Porsche Air-cooled 911’s
Code: SR065
Exhaust head stud repair kit for Porsche Air-cooled 911's

stomski

Never lose sleep again over a bent or broken exhaust stud on a 911 engine. This new tool is a must for every 911 mechanic and will pay for itself the first time you use it. This is a quick and totally accurate tool to repair and replace broken studs without damaging the head, or worse, having to remove the engine. The SR065 fixture indexes off of the exhaust port (by using one of the various sized port bushings included), secures to the opposite stud, and allows you to drill out, tap, and replace the stud dead on, every time. Includes LH drill bits, tap with extension, drill jigs/guides, port bushings, and a sturdy storage case.

Now includes our SR065D drill guide.

Fits ALL of the 911 heads including the 993.
Best Price
Inconel exhaust head stud kit. Porsche 911 /964/993/986
Code: SL-In-12
High performance stud + nut kits for the exhaust manifold to cylinder head for Porsche. Using titanium and Inconel alloy studs, aerospace lock nuts, and a well-thought and balanced combination of metals and plating/coatings, our fasteners will perform better than the traditional fastener. They will never oxidize, and hence will unscrew easily when required.

silverlake

Novel ultra-high-performance product
• Use of Inconel 718 and aerospace technology
• Extreme perceived quality

Contains 12 x Studs, Nuts & Washers

Fits:
Porsche 911 1965-77
Porsche 964 (non Turbo)
Porsche 993 All
Porsche 996 (non Turbo)
Porsche 997 (non Turbo)
Porsche 986 All
Porsche 987 All
Porsche 718 4 Cyl Turbo

Related reference numbers
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SL-In-12
99906200602
99908400201
99908400201
90006010601
99907507100
90037813100
9990750710A
99907507400
90037813100
90007428702
99907353501
99907358901

The product you are viewing cross references to these numbers
Best Price
Screw for crankcase.. Porsche 911 /S / 914
Code: 90110117300
Screw for crankcase.

porsche

Fits:
Porsche 911 /S (1965 to 1977; with 2.7L engines)
Porsche 914-6 (1970 to 1972)

Click 'Zoom in' for large parts diagram.
Diagram ref no 29

Related reference numbers
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90110117300
90110117300

The product you are viewing cross references to these numbers
Porsche Genuine Parts
Stud bolt, M10x69. Porsche 914 / 911
Code: 99906103402
Stud bolt, M10x69. Each.

porsche

Fits:
Porsche 914/6 (1970 - 1972)
Porsche 911 F  (1965 - 1973)
Porsche 911 Carrera (1984 - 1986)
Porsche 911 Turbo (1975 - 1986)

Click 'Zoom in' for large parts diagram.
Diagram ref no 6 (and no 7 for 914 only)

Related reference numbers
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99906103402
99906103402

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Porsche Genuine Parts
Through bolt o-ring installer for Porsche 911
Code: SR025
Through bolt o-ring installer for Porsche 911

stomski

Installing O-rings on the through bolts for a 911 engine case often slices the rings on the threads of the bolt, leading to ripped seals at best, or a leaky engine at worst. Use this cap to protect the O-ring and to insure a factory quality seal. Precisely machined from quality brass.
Best Price
Through bolt o-ring installer with sleeve for Porsche 911
Code: SR024
Stomski Racing SR024 Through bolt o-ring installer with sleeve for Porsche 911

stomski

Based on the factory P9511 tool, STOMSKI RACING's version of this tool incorporates a brass cap and a double-ended stainless steel sleeve to install the o-rings on the crankcase through-bolts of the 3.6 and later cases (but possibly can be used on some other 911 engines). By using the included brass cap to protect the delicate o-ring from getting cut on the threads of the bolt, you then use the "thin" end of the sleeve to slide the o-ring over the brass cap onto the shank of the through-bolt. Once the o-ring is clear of the threads, remove the SR024 brass cap and flip the SR024 stainless steel sleeve over and use the blunted end to securely and gently seat the o-ring in the recess on the 3.6 case.
Best Price
Titanium exhaust head stud kit in. Porsche 911 / 964/993/986
Code: SL-Ti-121
High performance stud + nut kits for the exhaust manifold to cylinder head for Porsche. Using titanium and Inconel alloy studs, aerospace lock nuts, and a well-thought and balanced combination of metals and plating/coatings, our fasteners will perform better than the traditional fastener. They will never oxidize, and hence will unscrew easily when required.

silverlake

Novel ultra-high-performance product
• Use of Titanium Ti6Al4V technology
• Extreme perceived quality

Contains 12 x Studs, Nuts & Washers

Fits:
Porsche 911 1965-77
Porsche 964 (none Turbo)
Porsche 993 All
Porsche 996 (none Turbo)
Porsche 997 (none Turbo)
Porsche 986 All
Porsche 987 All
Porsche 718 4 Cyl Turbo

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