6L80 Transmission Oil Pan Kit with Drain Plug and Filter

The Dorman 265-582 is the pan most shops reach for when a 6L80 or 6L80E comes in for a fluid service and the customer wants it easier next time. It keeps the factory shape and 18-bolt pattern, so it sits exactly where the original did, but it adds the threaded magnetic drain plug GM left off. The box holds the pan, a new pickup filter, the gasket, the internal magnet and the plug, and it replaces GM 24222657, 24224781, 24236933 and 29535617. It is the right part for a Silverado, Sierra, Tahoe, Yukon, Suburban, Escalade, Avalanche, Camaro, Corvette or Hummer H2 owner who wants a stock-height pan that drains like it should.

What the pan and filter do in a 6L80

On the 6L80 the pan holds the working fluid supply and the filter sits in a bore in the bottom of the case, so every bit of oil the pump sends to the valve body and converter has passed through it. With the factory pan, the only way to get old fluid out is to loosen the pan and let it pour over the flange. With a drain plug you can do a quick drain-and-fill between full services. Keep in mind that a drain-and-fill only swaps what is in the pan; a good share of the fluid stays in the converter, cooler and lines. Two or three drain-and-fills a few hundred miles apart refresh most of it, which is the cheapest way to keep fresh additives in a unit that is known to shudder on tired fluid.

Symptoms this kit is the fix for

• Converter shudder or a surging feel at steady speed that GM ties to depleted fluid
• Whine from the pump or slow engagement after a cold start, from a dirty or restricted filter
• Seepage at the pan rail on a pan that has been off before and no longer seals flat
• Overdue service on a high-mileage unit where you want to see what is on the magnet

How to confirm before buying

Check the fluid hot at the fill-check plug and look for burnt smell or dark color, then scan for codes. A healthy-shifting 6L80 with old fluid is the ideal candidate for this kit. Codes P0716, P0717 or P0751 point to the TEHCM or valve body, and a new pan will not cure those. For the full routine, read our 6L80 high-mileage service checklist; if you are chasing a shift complaint on a Camaro, the 6L80 Camaro problems guide is the better start.

Fitment

The listing covers 2006-2019 6L80 and 6L80E applications behind the 5.3L, 6.0L, 6.2L and related engines: Chevrolet Silverado 1500, Tahoe, Suburban, Avalanche, Camaro and Corvette; GMC Sierra 1500, Yukon and Yukon XL; Cadillac Escalade, Escalade ESV, EXT and XLR; and the Hummer H2. Before ordering, count the bolts on your old pan: this is the 18-bolt 6L80 pan. Trucks with the 6L90 or the later 8-speed and 10-speed units take different pans. If anything does not line up, send us the year and VIN and we will confirm. Browse every part we stock for this transmission on our 6L80 collection page.

Install notes

• Drop the old pan with a large drain tray under it; it will still hold several quarts. Remove the filter by pulling it straight down and confirm the old neck seal came with it.
• Fit the new filter, wipe the case rail clean and dry, and set the gasket without sealer.
• Snug the bolts by hand, then torque them in a cross pattern to the GM spec, about 106 in-lb (12 Nm). Overtightening a stamped pan dishes the flange and causes the leak you are trying to stop.
• Refill with Dexron VI. A pan and filter change takes roughly 6 quarts; a gallon of Valvoline Dexron VI plus a spare quart covers it. Set the final level at the check plug, engine running, fluid hot.
• The top fill point on these trucks is awkward. A pressurized ATF fill pump lets you fill from below.
• If you would rather go to a cast pan with more capacity for towing, compare this with our deep aluminum 6L80 pan kit.

Is this the same size as the factory 6L80 pan?

Yes. The 265-582 is stamped to the original shape and 18-bolt pattern, so ground clearance and fluid capacity stay the same as stock. The difference is the added magnetic drain plug.

Which GM part numbers does it replace?

It is listed as replacing GM 24222657, 24224781, 24236933 and 29535617.

Does a drain-and-fill replace all the fluid?

No. Draining the pan only removes what is in it; fluid in the converter, cooler and lines stays behind. Repeat the drain-and-fill two or three times a few hundred miles apart to replace most of the fluid.

What fluid and how much?

Use Dexron VI. GM lists about 5.7 L (6.0 qt) for a 6L80 pan and filter service. Set the final level at the check plug with the engine running at operating temperature.

Do I need a new filter seal?

GM requires the filter neck seal in the case bore to be replaced whenever the filter is removed. Make sure the old seal comes out with the old filter and that the new filter goes in with a seal.

Will this fit a 6L90 in a 2500 truck?

No. It is the 18-bolt 6L80 pan. Check your RPO code (MYC for 6L80) or send us the VIN to confirm.

• 6L80 High-Mileage Service Checklist: What to Inspect Past 100,000 Miles
• 6L80 Transmission Service Guide: Fluid, Filter, and What to Watch For
• 6L80 Camaro Common Problems and Fixes
• 6L80 Corvette Common Problems and Fixes