Mishimoto Transmission Cooler for 01-03 Chevrolet GMC 6.6L Duramax LB7 Enhanced Cooling Performance
Mishimoto Transmission Cooler for 01-03 Chevrolet GMC 6.6L Duramax LB7 Enhanced Cooling Performance
Mishimoto Transmission Cooler for 01-03 Chevrolet GMC 6.6L Duramax LB7 Enhanced Cooling Performance
Mishimoto Transmission Cooler for 01-03 Chevrolet GMC 6.6L Duramax LB7 Enhanced Cooling Performance

Mishimoto Transmission Cooler - Chevrolet /GMC 2001-2003 6.6L Duramax LB7 Transmission Cooler

Mishimoto SKU: MISMMTC-DMAX-01SL
Price
9% OFF
In Stock – Ready to Ship
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The Mishimoto transmission cooler for the 2001-2003 Chevrolet/GMC 6.6L Duramax LB7 is a direct-fit, stacked-plate upgrade that lowers fluid temperatures for towing, fleet, and daily-driven trucks running the Allison 1000 transmission. Its 13-row core delivers 174% greater core volume and 192% greater fin surface area than the stock cooler, and CNC-machined adapters connect to the factory lines (or AN lines) for leak-free flow with direct-fit brackets and tailor-made hoses. Note: this cooler fits early-2003 trucks with orange line clips; late-2003 purple-clip trucks use the 2003-2005 cooler.

Specifications

Type Direct-fit transmission cooler
Core 13-row stacked-plate
Transmission Allison 1000
vs. Stock +174% core volume, +192% fin area
Fittings CNC-machined adapters (stock line or AN)
Note Early-2003 orange-clip trucks only
Part Number MMTC-DMAX-01SL
Warranty Mishimoto Lifetime Warranty

This part fits:

Year Make Model Submodel
2001-2003 Chevrolet Silverado 2500 HD Base
2001-2003 Chevrolet Silverado 2500 HD LS
2001-2003 Chevrolet Silverado 2500 HD LT
2001-2003 Chevrolet Silverado 3500 Base
2001-2003 Chevrolet Silverado 3500 LS
2001-2003 Chevrolet Silverado 3500 LT
2002-2003 GMC Sierra 2500 HD Base
2001-2002 GMC Sierra 2500 HD SL
2001-2003 GMC Sierra 2500 HD SLE
2001-2003 GMC Sierra 2500 HD SLT
2003 GMC Sierra 2500 HD WT
2002-2003 GMC Sierra 3500 Base
2001-2002 GMC Sierra 3500 SL
2001-2003 GMC Sierra 3500 SLE
2001-2003 GMC Sierra 3500 SLT

Shipping

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  • Standard, expedited, and overnight options at checkout.
  • Oversized items ship by freight and take longer.
  • Special order items follow a lead time we confirm with you individually before the order is committed.
  • Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
  • Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
  • International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

  • 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
  • Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
  • Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
  • Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
  • Product images may be representative. The SKU and specifications in the listing are what ships.
  • Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Returns & Refunds · Warranty
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