HIHIAV Oil Pan Gasket Kit for GM 4.8–6.2L Vortec V8 — Includes Oil Pump Pickup Tube Gasket, Fits Silverado/Sierra

This HIHIAV gasket set replaces OE numbers like 12612350 and OS30693R and fits Chevrolet, GMC and related GM vehicles equipped with 4.8L, 5.3L, 5.7L, 6.0L and 6.2L Vortec engines. The kit is supplied as a full oil pan gasket plus the oil pump pickup tube gasket, packaged for direct replacement during oil pan service, gasket renewal or oil pump work. It’s designed to match the shape and mounting points of factory parts for a reliable installation when fitted correctly with recommended fasteners and sealant where specified.

Which vehicles and engines will this gasket kit fit?

This set covers many GM trucks, SUVs and vans built around the Vortec V8 family from model years 1999 through 2020. It fits 4.8L, 5.3L, 5.7L, 6.0L and 6.2L engines installed in Chevy, GMC, Cadillac and Buick platforms when the OE part numbers match.

• Chevrolet: Silverado, Suburban, Tahoe, Avalanche, Colorado, Camaro, Express, Trailblazer, Caprice, Impala
• GMC: Sierra, Yukon, Savana, Envoy, Canyon
• Cadillac and Buick models such as Escalade and Rainier when equipped with the listed V8 engines
• OE references: 12612350, OS30693R, OS32241, OS32441 and related numbers

How does installation typically go and what do I need?

Installation involves draining oil, removing the oil pan, cleaning mating surfaces, and installing the gasket and pickup tube gasket before reassembling. Basic hand tools and a service manual or torque spec reference are recommended for correct bolt sequence and torque values.

• Tools: ratchet, sockets, torque wrench, gasket scraper, brake cleaner or equivalent
• Consumables: engine oil, new oil filter, gasket sealant only if specified by manual
• Time: expect a few hours depending on rust, vehicle trim removal, and experience
• Tip: verify fit against the old gasket and inspect the oil pan for dents or warping

What quality and fitment assurances come with this HIHIAV kit?

The kit is produced to match OEM profiles and supplied with a 12-month warranty; HIHIAV provides after-sale support for fitment or return concerns. Weight and size info are provided in product images to help confirm fit before purchase.

• Includes: oil pan gasket set and oil pump pickup tube gasket in one package
• Warranty: 12 months from purchase for manufacturing defects
• Support: customer service available for fitment questions and replacement requests
• Compatibility: multiple OE part numbers covered—confirm against your vehicle VIN or existing part

Will this gasket fix an oil leak on my Vortec engine?

This kit replaces the common sealing components that can cause leaks when deteriorated, but a proper repair requires correct installation and inspection of adjoining parts. Leaks may also come from pan damage, corroded fasteners, or other engine seals that should be checked during service.

• Replace if the old gasket is cracked, flattened, or hardened
• Inspect oil pan flange for warping or damage before installing
• Check fastener condition and threads—replace stripped bolts or helicoils as needed
• Retorque bolts to manufacturer specifications after initial run-in

Who is this for: mechanics, home DIYers and fleet technicians working on GM V8 vehicles who need a reliable replacement oil pan gasket and oil pump pickup tube gasket matching OE numbers 12612350/OS30693R. Choose this HIHIAV kit when you want an OEM-replacement profile, clear fitment coverage across common Chevy and GMC models, and post-sale support during installation.