My Garage

BETA · v2.0
Earn Entries Storewide
Call Support (916) 463-9111

Sac City support

Our store may be closed, but we’re always here to help.

Send us an email anytime. Our team will reply during store hours. In the meantime, find the parts you need and keep shopping online.

Store hours (Pacific time)
Monday–Friday
08:00–17:00
Saturday
09:00–14:00
Sunday
Closed
Continue shopping online

Search by part name, part number, brand or donor stock.

Shop All Car Parts
@SacCityAutoParts ↗

Earn Entries Storewide

Win this Nissan Z Proto Spec – every $1 you spend = 1 entry, ends Nov 30. Enter now. Official sweepstakes rules
My Garage
Load your saved car for parts and LIQUI MOLY. Sign in
Mishimoto  |  SKU: MISMMTS-RAM-89H
9% off

Mishimoto 89-93 Dodge 5.9L Cummins 87.5C High-Temperature Thermostat

Entries for your chance to win a Nissan Z
Ticket Image Entries
Sale price $64.95 Regular price $71.00
Shipping calculated at checkout.

Delivery and Shipping

Items are shipped within 10-20 business days due to larger quantity of orders during sweepstakes.

Description

The 12-valve first-gen Cummins in your Ram is considered one of the best diesel engines ever produced, and for good reason. Fuel efficiency, torque, and simplicity are just a few characteristics that give the Cummins its stellar reputation. We're huge fans of the Cummins engine, which is why we've developed a high-temperature thermostat for the 1989-1993 5.9L 12v Cummins. This Mishimoto thermostat activates at a higher temperature (189.5F) compared to the factory thermostat (180F). By raising the activation temperature, coolant flows through the system later, promoting quicker engine warmup. The Mishimoto high-temperature thermostat is ideal for vehicles in cold climates, where rapid warmup and quicker in-cabin heat is vital. This thermostat includes a high-quality replacement gasket and our signature Mishimoto Lifetime Warranty.

Fitments