Home/All Parts/SCE Gaskets/SCE Gaskets BBC Viton Split Rear Main Seal
Product Details

A gasket or seal closes the gap where two parts meet, or around a turning shaft, so that oil, coolant, fuel, air, exhaust or combustion pressure cannot leak out of the engine or driveline.

Listed for 125 vehicles: the fitment table on this page shows each year, make and model it fits.

Manufacturer fitment data lists this part for the 1965–1972 Chevrolet Biscayne and 1965–1973 Chevrolet Chevelle and 123 further vehicles.

Part number: 21305

Confirm this fits your vehicle. Use the “Check Fit” selector, or see the Vehicle Compatibility list below for the years, makes and models listed.

Specifications

Manufacturer data for this part — all visible, no tabs to dig through.

BrandSCE Gaskets
Part number21305
Shipping carton7.75 × 5.75 × 0.5 in (20 × 15 × 1.3 cm)
Shipping weight0.1 kg (0.25 lb)
CategoryEngine & Driveline
SCE Gaskets BBC Viton Split Rear Main Seal
21305
$41.99
$41.99special order · no extra fees at delivery

Reviews

From MapleTorque customers

What customers say about MapleTorque

Awesome Send an email get reply very promptly... Send an other email weekend time ... Also get reply immediately... Alex take care of the customer to make sure everything going good during the transaction... #1 2026 Keep continu...

Eric L. Verified buyer
Store review

Quick shipping and very smooth transaction and I will certainly be checking here for future needs

Anonymous Verified buyer
Store review

Outstanding Customer Service!

Excellent shopping experience with MapleTorque! Alex was incredibly responsive, friendly, and genuinely committed to customer satisfaction. He personally helped me with pricing, made the purchase process easy, and even followed up after ...

Vasyl P. Verified buyer
Store review