Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 1986 Honda Civic Si.

Fel-Pro
Part # TCS45620
$5.00

Clevite
Part # MS1806AL
$52.15

Cometic Gasket
Part # C4663
$27.26

Mishimoto
Part # MMOFC-HN-HOONRD
$67.53

Mishimoto
Part # MMOFC-HN-BK
$55.24

Fel-Pro
Part # 9219PT1
$33.54


Gates
Part # 9335
$18.57

Victor Reinz
Part # SS45499
$21.45

Fel-Pro
Part # 70978
$1.50

Victor Reinz
Part # 3782
$34.20


Gates
Part # 31109
$7.04

King Engine Bearings
Part # MB5168XPSTDX
$114.36

Clevite
Part # TW327S
$19.29

Victor Reinz
Part # VS38379
$15.54

Fel-Pro
Part # OS30542R
$18.10


Dayco
Part # 5030290
$12.04

NGK
Part # 24038
$31.76

Mishimoto
Part # MMOFC-HN-RD
$55.24

Sealed Power
Part # 6699MA
$59.81

Fel-Pro
Part # BS40430
$12.92
This page groups parts listed for the 1986 Honda Civic Si. Some products fit every trim, while others depend on submodel, engine, drivetrain, or brake package. Use your trim in My Garage or the product page fitment check to confirm exact fit.
We offer a wide selection of engine & drivetrain parts for the 1986 Honda Civic Si. This page narrows the catalog to the year, make, and model; use your trim on product pages to confirm exact fit when a part only fits certain submodels.
We carry parts from trusted brands including King Engine Bearings, NGK, Victor Reinz, Fel-Pro, and Gates, plus many more. Filter by brand to find your preferred manufacturer.
Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.
Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.