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Mishimoto 17-19 GM 6.6L Duramax (L5P) Transmission Cooler - Silver

SKU: MISMMTC-DMAX-17SL

Fluid Coolers

MM Transmission Coolers...

Mishimoto 17-19 GM 6.6L Duramax (L5P) Transmission Cooler - Silver

SKU: MISMMTC-DMAX-17SL

Fluid Coolers

MM Transmission Coolers...

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A$1,116.67 A$1,348.48
IN STOCK! Est Ship 3-5 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

There's no greater enemy for a transmission than heat. Whether your 2017-2019 Chevy/GMC 6.6L L5P Duramax is a dedicated tow vehicle, hardworking fleet truck, or a daily driver with a liking for the drag strip, you need to ensure that your transmission runs cool.Luckily, Mishimoto has developed a direct-fit transmission cooler to do just that. Our 2017-2019 Chevy/GMC 6.6L L5P Duramax transmission cooler utilizes a stacked-plate design for maximum durability and powerful cooling. Aside from its durable construction, this transmission cooler is significantly larger than the stock core. The Mishimoto transmission cooler boasts a 67-percent greater core volume, and 164-percent greater fin surface area than the stock 2017-2019 L5P Duramax transmission cooler.The included CNC-machined adapters connect directly to the stock transmission cooler lines for leak-free cooling. Direct-fit brackets and tailor-made hoses make installation easy. Like all Mishimoto products, this transmission cooler is backed up by our Lifetime Warranty with Accident Protection for worry-free cooling as long as you own it.

Product Overview

There's no greater enemy for a transmission than heat. Whether your 2017-2019 Chevy/GMC 6.6L L5P Duramax is a dedicated tow vehicle, hardworking fleet truck, or a daily driver with a liking for the drag strip, you need to ensure that your transmission runs cool.Luckily, Mishimoto has developed a direct-fit transmission cooler to do just that. Our 2017-2019 Chevy/GMC 6.6L L5P Duramax transmission cooler utilizes a stacked-plate design for maximum durability and powerful cooling. Aside from its durable construction, this transmission cooler is significantly larger than the stock core. The Mishimoto transmission cooler boasts a 67-percent greater core volume, and 164-percent greater fin surface area than the stock 2017-2019 L5P Duramax transmission cooler.The included CNC-machined adapters connect directly to the stock transmission cooler lines for leak-free cooling. Direct-fit brackets and tailor-made hoses make installation easy. Like all Mishimoto products, this transmission cooler is backed up by our Lifetime Warranty with Accident Protection for worry-free cooling as long as you own it.


Features and Benefits

  • Direct-fit for all 2017-2019 Chevrolet/GMC with Allison transmission (L5P)
  • Stacked-plate construction for maximum durability and superior cooling
  • CNC-machined adapters make it easy to connect Mishimoto cooler to stock fluid lines or AN lines

Product Details

Year Make
Core Height:5.78
Core Material:Aluminum
Core Thickness:1.25
Core Width:27.95
Description:Mishimoto 17-19 GM 6.6L Duramax (L5P) Transmission Cooler - Silver
Electric Fan:No
Finish:Natural Aluminum
Grade Type:Performance
Height:0
Inlet Diameter:1
Install Difficulty:2
Line Included:Yes
Mounting Hardware Included:Yes
Outlet Diameter:1
Part Number:misMMTC-DMAX-17SL
Prop 65 - Short Label:WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 Y/N:Y
SellingPoint01:Direct-fit for all 2017-2019 Chevrolet/GMC with Allison transmission (L5P)
SellingPoint02:Stacked-plate construction for maximum durability and superior cooling
SellingPoint03:CNC-machined adapters make it easy to connect Mishimoto cooler to stock fluid lines or AN lines
SellingPoint04:67-percent greater core volume than stock cooler
SellingPoint05:164-percent greater external fin surface area over stock cooler
SellingPoint06:Includes durable SAE J1532 hose designed specifically for use with transmission fluid
SellingPoint07:Mishimoto Lifetime Warranty
SellingPoint08:N/A
SellingPoint09:N/A
SellingPoint10:N/A
SellingPoint11:N/A
SellingPoint12:N/A
SellingPoint13:N/A
SellingPoint14:N/A
SellingPoint15:N/A
TechSpec Applications:N/A
TechSpec Caution:N/A
TechSpec Chassis Codes:L5P
TechSpec Core Construction:N/A
TechSpec Core Height (in):5.78
TechSpec Core Length (in):27.95
TechSpec Core Thickness (in):1.25
TechSpec Engine Codes:6.6L Duramax
TechSpec Fluid Capacity (qts):N/A
TechSpec Includes:Mishimoto Stacked Plate Transmission Cooler--CNC-Machined Quick-Disconnect to Hose Barb Adapters--Stock-style Quick-Disconnect Fittings--Transmission Hoses--Air Temperature Sensor Relocation Bracket--Mounting Brackets--Worm Gear Clamps--Mounting Hardware--Includes durable SAE J1532 hose designed specifically for use with transmission fluid
TechSpec Inlet:N/A
TechSpec Installation Notes:N/A
TechSpec Note:Silverado models require minor trimming of the grille to fit.
TechSpec Outlet:N/A
TechSpec Overall Height (in):N/A
TechSpec Overall Length (in):N/A
TechSpec Overall Width (in):N/A
TechSpec Rows:13
TechSpec Transmission Codes:Allison 1000
Thickness:0
Width:0

Part Type

Automatic Transmission Oil Cooler

Data: v4.2 - Upd: 2026-10-17 04:26:16

Features

  • CNC-machined adapters make it easy to connect Mishimoto cooler to stock fluid lines or AN lines
  • Direct-fit for all 2017-2019 Chevrolet/GMC with Allison transmission (L5P)
  • Stacked-plate construction for maximum durability and superior cooling

Specifications

Product Attributes - Brand
Mishimoto
Product Attributes - Manufacturer's Part Number
MMTC-DMAX-17SL
Product Attributes - Part Type
Fluid Coolers
Product Attributes - Product Line
Mishimoto Oil Cooler Kits
Product Attributes - UPC
00840197700785
Product Attributes - Fluid Cooler Type
Transmission
Product Attributes - Cooler Construction
Plate
Product Attributes - Fluid Cooler Inlet Size
Stock
Product Attributes - Fluid Cooler Outlet Size
Stock
Product Attributes - Inlet Attachment
Quick-connect
Product Attributes - Outlet Attachment
Quick-connect
Product Attributes - Cooler Material
Aluminum
Product Attributes - Fan Included
No
Product Attributes - Number of Cooling Rows
13
Product Attributes - Core Height (in.)
5.78 in.
Product Attributes - Core Width (in.)
27.95 in.
Product Attributes - Core Thickness (in.)
1.25 in.
Product Attributes - Cooler Color
Silver
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
For use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.

Reference Information

Brand Name/s Mishimoto
StreetFX SKU misMMTC-DMAX-17SL
SFX Item ID 4050034
Supplier Item Code 4050034
Manufacturer SKU MMTC-DMAX-17SL
Manufacturer UPC 840197700785
Alternative References MIM000391, MIMMMTC-DMAX-17SL, MIO-MMTCDMAX17SL, 6.6L, (L5P)

Compatibility

Application Data
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelHIGH COUNTRY
    Beginning Year2017
    Ending Year2019
    Engine TypeV8
    Engine FamilyDURAMAX V8 DIESEL
    Engine Size6.6L/403
    Application NotesFor use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLT
    Beginning Year2017
    Ending Year2019
    Engine TypeV8
    Engine FamilyDURAMAX V8 DIESEL
    Engine Size6.6L/403
    Application NotesFor use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLTZ
    Beginning Year2017
    Ending Year2019
    Engine TypeV8
    Engine FamilyDURAMAX V8 DIESEL
    Engine Size6.6L/403
    Application NotesFor use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelWT
    Beginning Year2017
    Ending Year2019
    Engine TypeV8
    Engine FamilyDURAMAX V8 DIESEL
    Engine Size6.6L/403
    Application NotesFor use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 3500 HD
    SubmodelHIGH COUNTRY
    Beginning Year2017
    Ending Year2019
    Engine TypeV8
    Engine FamilyDURAMAX V8 DIESEL
    Engine Size6.6L/403
    Application NotesFor use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 3500 HD
    SubmodelLT
    Beginning Year2017
    Ending Year2019
    Engine TypeV8
    Engine FamilyDURAMAX V8 DIESEL
    Engine Size6.6L/403
    Application NotesFor use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 3500 HD
    SubmodelLTZ
    Beginning Year2017
    Ending Year2019
    Engine TypeV8
    Engine FamilyDURAMAX V8 DIESEL
    Engine Size6.6L/403
    Application NotesFor use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 3500 HD
    SubmodelWT
    Beginning Year2017
    Ending Year2019
    Engine TypeV8
    Engine FamilyDURAMAX V8 DIESEL
    Engine Size6.6L/403
    Application NotesFor use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.
  • UniversalNo
    MakeGMC
    ModelSIERRA 2500 HD
    SubmodelBASE
    Beginning Year2017
    Ending Year2019
    Engine TypeV8
    Engine FamilyDURAMAX V8 DIESEL
    Engine Size6.6L/403
    Application NotesFor use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.
  • UniversalNo
    MakeGMC
    ModelSIERRA 2500 HD
    SubmodelDENALI
    Beginning Year2017
    Ending Year2019
    Engine TypeV8
    Engine FamilyDURAMAX V8 DIESEL
    Engine Size6.6L/403
    Application NotesFor use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.
  • UniversalNo
    MakeGMC
    ModelSIERRA 2500 HD
    SubmodelSLE
    Beginning Year2017
    Ending Year2019
    Engine TypeV8
    Engine FamilyDURAMAX V8 DIESEL
    Engine Size6.6L/403
    Application NotesFor use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.
  • UniversalNo
    MakeGMC
    ModelSIERRA 2500 HD
    SubmodelSLT
    Beginning Year2017
    Ending Year2019
    Engine TypeV8
    Engine FamilyDURAMAX V8 DIESEL
    Engine Size6.6L/403
    Application NotesFor use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.
  • UniversalNo
    MakeGMC
    ModelSIERRA 3500 HD
    SubmodelBASE
    Beginning Year2017
    Ending Year2019
    Engine TypeV8
    Engine FamilyDURAMAX V8 DIESEL
    Engine Size6.6L/403
    Application NotesFor use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.
  • UniversalNo
    MakeGMC
    ModelSIERRA 3500 HD
    SubmodelDENALI
    Beginning Year2017
    Ending Year2019
    Engine TypeV8
    Engine FamilyDURAMAX V8 DIESEL
    Engine Size6.6L/403
    Application NotesFor use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.
  • UniversalNo
    MakeGMC
    ModelSIERRA 3500 HD
    SubmodelSLE
    Beginning Year2017
    Ending Year2019
    Engine TypeV8
    Engine FamilyDURAMAX V8 DIESEL
    Engine Size6.6L/403
    Application NotesFor use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.
  • UniversalNo
    MakeGMC
    ModelSIERRA 3500 HD
    SubmodelSLT
    Beginning Year2017
    Ending Year2019
    Engine TypeV8
    Engine FamilyDURAMAX V8 DIESEL
    Engine Size6.6L/403
    Application NotesFor use with Allison 1000 transmission and will require minor trimming of the grille on Silverado applications.

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