Pay in installments of $46.19 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 29 - Oct 4
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Expansion Tank for Mitsubishi Triton 2.5 DI-D 4D56 (KAT/KBT)(2007–2016) – ET40Vehicle Fitment & Part Details This Partquip ET40 expansion tank is a direct fit replacement for the Mitsubishi Triton (KAT KBT) 2. 5 DI D with the 4D56 engine (20072016). The expansion tank stores excess coolant as it expands under heat, releasing it back into the cooling circuit once the engine cools. Confirm compatibility by matching the listed fitment details, any OEM reference numbers supplied, and VIN engine chassis information where variants
Vehicle Fitment & Part Details
This Partquip ET40 expansion tank is a direct-fit replacement for the Mitsubishi Triton (KAT/KBT) 2.5 DI-D with the 4D56 engine (2007–2016). The expansion tank stores excess coolant as it expands under heat, releasing it back into the cooling circuit once the engine cools. Confirm compatibility by matching the listed fitment details, any OEM reference numbers supplied, and VIN/engine/chassis information where variants exist.
Key Details
- SKU
- ET40
- Component
- Expansion Tank
- Brand
- Partquip
- OEM References
-
- Mitsubishi: MN135072
- Primary Fitment
- Mitsubishi Triton (KAT
Key Benefits
- Direct OE replacement (MN135072) ensures correct fit and function on the Triton 2.5 DI-D.
- Durable plastic construction engineered to withstand repeated thermal cycling in the cooling circuit.
Vehicle Fitment
| Variant | Engine | Years |
|---|---|---|
| 2.5 DI-D | 4D56 | 2007–2016 |
Specifications
- Material: Plastic
- Chassis: KAT / KBT
- SKU: ET40
OE Reference Numbers
- Mitsubishi: MN135072
Frequently Asked Questions
Which OE part number does the ET40 replace?
This expansion tank replaces Mitsubishi OE number MN135072, ensuring a direct fit on the Triton 2.5 DI-D (KAT/KBT).
Installation Tips
- Allow the engine to cool completely before opening the cooling system to avoid scalding.
- Drain coolant below the tank level before removing the old expansion tank.
- Inspect all connected hoses and clamps for cracks or wear — replace any suspect components while access is clear.
- Refill with the manufacturer-specified coolant type and bleed the system of air pockets to prevent overheating.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 7 reviews
Sort
Product Reviews
★★★★★ 5
Cost effective
Style: 8.7 sqft（8 pcs）, Material Type: Aluminum 197 mil
Nice, cost effective material. It stuck nicely to the door and was fairly easy to use. The grid marks on the back made it easy to cut. I would not rank it up with other materials in sound and heat isolation, but it did cut down the overall vibrations on the door panels and I did not feel heat immediately from the floor area as i did with bare metal. If you are working with a budget and want modest improvement, this material will work well over most stock materials.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
★★★★★ 5
Good value and sticks well
Style: 8.7 sqft（8 pcs）, Material Type: Aluminum 197 mil, Style: 8.7 sqft（8 pcs）, Material Type: Aluminum 197 mil
For $14 for 8.7 square feet, this was more than enough to cover the important parts of the trunk of my 944. You DON'T need a roller to apply this, just strong hands and a well prepped surface. I vacuumed, lightly washed, then used 90% alcohol to clean the surface before applying. I could have used more and covered every inch, but there is diminishing returns in doing so (especially on a budget, or with a lower wattage sound system in my opinion). If this stuck as well as it did for me in a 45° garage, then it should stick just fine for you too. I will say, it is a little cheap feeling, but for the price I can't complain. There is an audible difference when knocking on the panels this material is applied to. I'm not a professional though, and if you're an audiophile, there are better options (but prepare to empty your wallet). Not sure I would do an entire vehicle with this material, but it is a great supplement.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
★★★★★ 5
Easy to work with
Style: 8.7 sqft（8 pcs）, Material Type: Aluminum 197 mil
Excellent product. Strong adhesive and foam cover with silver aluminum barrier. Easy to handle and install. Cuts with razor type cutter without problems. Has inch measurements on paper side to help with fitting. Good value for cost.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
★★★★★ 4
Good value for my application
Style: 37.1 sqft（34 pcs）, Material Type: Aluminum 197 mil
I wanted this product for heat and sound installation. Worked well for my application of insulating Jeep floorboards. Easy to work with. Good adhesion. I may have went for a little thicker material. But it's better than only carpet. That's what Jeeps have so it worked great for me. Good value for the money, I like the size of the squares since I needed to do a lot of trimming anyway.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 26, 2025
★★★★★ 5
Good value
Style: 16.3 sqft（15 pcs）, Material Type: Aluminum 197 mil
Works well in installation but recommend an aluminum foil tape to go over all seams. Seems to work well as a heat insulator. Not sure about durability UNTILL we get some years under our belts.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
recommand products
D&D Nolzur's Marvelous Miniatures: Black Dracolich Boxed Miniature
99.99
Dungeons & Dragons: Green Dragon Phunny Plush by Kidrobot
16.99
D&D Nolzur's Marvelous Miniatures: Young Black Dragon (Bundle of 6)
44.97
D&D Icons of the Realms: Phandelver and Below: The Shattered Obelisk - 8 ct. Booster Brick (Set 29)
159.92
D&D Nolzur's Marvelous Miniatures: Aasimar Male Paladin (Bundle of 6)
17.97