.30" thicker than stock
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 1.50mm (+0.30) thickness - for use with a machined head
Brand:
ES#:
2542523
Mfg#:
11127599213
15% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$315.99
This product was last offered at the strikethrough price on 06-28-2026
$269.99 USD
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Seal fitted to the end of the valve
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Brand:
ES#:
2702295
Mfg#:
11340034068
$54.99
This product was last offered at the strikethrough price on 05-07-2026
$53.99 USD
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Lifetime Replacement
M6X12-8.8
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
14734
Mfg#:
07119905524
$1.09 USD
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Sends timing information to the cam sensor
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Brand:
ES#:
1304958
Mfg#:
11367578877
6% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$30.99
This product was last offered at the strikethrough price on 06-28-2026
$28.99 USD
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Lifetime Replacement
Used to hold the spring for the engine valves
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
22973
Mfg#:
11347539917
7% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$13.99
This product was last offered at the strikethrough price on 06-28-2026
$12.99 USD
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Lifetime Replacement
A comprehensive, premium-grade solution designed to replace degraded seals, eliminate stubborn leaks, and restore optimum engine efficiency.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
Brand:
ES#:
4390970
Mfg#:
11127587804G
$218.99 USD
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Quality retainers from Supertech
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Brand:
ES#:
4716136
Mfg#:
RET-BMN54-TE-12
$197.99 USD
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Lifetime Replacement
Designed for BMW cylinder head bolts
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Perfect for removal and installation of head bolts
Brand:
ES#:
3998968
Mfg#:
CTA9244
Limited Qty Sale
$35.72
This product was last offered at the strikethrough price on 06-08-2026
$31.99 USD
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Lifetime Replacement
Cometic MLS Head Gasket for N55B30 0.044" Thickness
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4821113
Mfg#:
C15476-044
Limited Qty Sale
$194.99
This product was last offered at the strikethrough price on 06-15-2026
$177.99 USD
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Used to correctly position the cylinder head
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Brand:
ES#:
18269
Mfg#:
11121726241
13% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$2.11
This product was last offered at the strikethrough price on 06-28-2026
$1.83 USD
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Lifetime Replacement
To be replaced with every service
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Brand:
ES#:
2568745
Mfg#:
11367548459
ON SALE!
$8.14
This product was last offered at the strikethrough price on 06-25-2026
$7.73 USD
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Lifetime Replacement
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Brand:
GSC Power Division
ES#:
4840008
Mfg#:
3089-12
10% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$87.99
This product was last offered at the strikethrough price on 06-28-2026
$78.99 USD
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Lifetime Replacement
A quick and easy way to test for gasket leaks
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Brand:
ES#:
246322
Mfg#:
83300496326
$77.99 USD
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Lifetime Replacement
D=9.5mm
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Brand:
ES#:
18222
Mfg#:
11121713264
ON SALE!
SAVE 13%
$7.99
This product was last offered at the strikethrough price on 06-25-2026
$6.93 USD
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Lifetime Replacement
Ensure your VANOS timing system is operating correctly
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
Brand:
ES#:
4500091
Mfg#:
11367578877
$22.99 USD
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Lifetime Replacement
Quality retainers from Supertech
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Brand:
ES#:
4716130
Mfg#:
RET-BMN54-TI
$16.99 USD
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Lifetime Replacement
More About Cylinder Head Parts
Whether you're replacing or upgrading components of your cylinder head, we have everything you need to get back on the road. Finish your engine build or replace broken cylinder head bits with our catalog of rocker arms, camshafts, cylinder head gaskets, valves, valve springs, entire cylinder head assemblies, cylinder head hardware, and more.