Complete Eight-Hose Kit
The MMHOSE-GMT-88 package includes eight primary cooling-system hoses. Replacing them together helps eliminate multiple aging components during the same service instead of waiting for each old hose to fail individually.
According to the official Mishimoto product listing, the kit includes:
- Eight molded EPDM coolant hoses
- Direct-fit factory-style construction
- Coverage for the vehicle’s primary coolant-hose locations
- Mishimoto Lifetime Warranty
Always compare the supplied hoses with the original parts before installation. GM used several configurations across its truck lineup, and engine swaps or previous cooling-system repairs may have changed the factory routing.
1988–1995 Chevrolet and GMC Truck Fitment
This coolant-hose kit is listed for 1988–1995 Chevrolet and GMC trucks equipped with either of these gasoline V8 engines:
- 5.0L small-block V8
- 5.7L small-block V8
These engines were used across multiple C/K-series truck applications, including two-wheel-drive and four-wheel-drive platforms. Verify the model year, engine displacement and existing hose arrangement before ordering.
The kit is not advertised for V6, diesel or big-block applications. It should also not be assumed to fit trucks with later LS-based engine swaps. Readers planning a newer engine conversion can review the Pro Street GM LS Engine Guide before ordering cooling-system components.
Why Replace Old Coolant Hoses?
A coolant hose can look acceptable externally while becoming brittle, soft or internally damaged. Warning signs include:
- Cracks around the hose ends
- Swollen or unusually soft sections
- Coolant residue near clamps and fittings
- Abrasion caused by contact with brackets or accessories
- A hose that remains flattened after being squeezed
- Unexplained coolant loss or overheating
A leaking hose can quickly lower the system’s coolant level and cause serious engine damage. The Pro Street guide to avoiding a blown head gasket explains why cooling-system maintenance matters before temperatures get out of control.
Installation Notes
Allow the engine to cool completely before opening the cooling system. Hot coolant is pressurized and can cause severe burns.
Drain the coolant into a suitable container, document the original hose routing and replace one hose at a time where practical. Inspect the radiator necks, thermostat housing, water-pump connections, heater fittings and clamps while everything is accessible.
The manufacturer rates the installation at medium difficulty. Owners should consult the appropriate GM service information for their exact truck and use the specified coolant mixture and bleeding procedure.
After installation:
- Refill the cooling system with the correct coolant.
- Bleed trapped air according to the factory procedure.
- Bring the engine to normal operating temperature.
- Inspect every connection for leaks.
- Recheck the coolant level after the engine cools.
Product Features
- Manufacturer: Mishimoto
- Part number: MMHOSE-GMT-88
- Product type: Replacement coolant-hose kit
- Material: EPDM rubber
- Color: Black
- Hose count: Eight
- Fitment: 1988–1995 Chevrolet and GMC trucks
- Compatible engines: 5.0L and 5.7L V8
- Installation difficulty: Medium
- Warranty: Mishimoto Lifetime Warranty
- Direct-fit molded construction
- Replaces the vehicle’s primary coolant hoses
Additional automotive components and maintenance parts are available through the Pro Street Online store. Readers can also find engine guides, repair information and project-car coverage on My Pro Street.
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