1991 Eagle Summit Cooling System Parts

This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator. Read more

16 Coolant / Antifreeze parts are listed for the 1991 Eagle Summit, from PEAK, PRESTONE, FVP and 1 other brand. FVP MV5050GAL carries the "Popular" badge.

The Compatible With All Colors section lists 1 option from PRESTONE — grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. PRESTONE AF3055 is listed in this group.

In the Economy grade, FVP, PRESTONE, PEAK and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.

The Premium section lists 4 options from PRESTONE and PEAK — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.

The Standard Replacement section lists 7 options from PEAK, VALVOLINE, FVP and 1 other brand — built to original-equipment specification. VALVOLINE ZX001 is listed in this group.

This table covers the seals at the Coolant Hose / Pipe. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

2 Coolant Hose / Pipe Seal parts for the 1991 Eagle Summit come from 2 brands — MAHLE / CLEVITE and VICTOR REINZ.

Listed part numbers: MAHLE / CLEVITE B45797 and VICTOR REINZ 151118601.

This table covers the adapters used to pressure-test this cooling system. Read more

4 Cooling System Tester Adapter parts are listed for the 1991 Eagle Summit, from MOTORAD, GATES and STANT.

Listed part numbers: GATES 31428, MOTORAD 3121 and MOTORAD 3122, plus the other parts above.

This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap. Read more

7 Radiator parts are listed for the 1991 Eagle Summit, from TECHPRO, AGILITY, ACDELCO and 3 other brands. AGILITY 8010234 carries the "Popular" badge.

Economy: 2 parts, from TECHPRO. A representative part number is TECHPRO MI3010167.

The Standard Replacement section: 5 options from AGILITY, ACDELCO, FVP and 2 other brands. AGILITY 8010234 is listed in this group.

This group includes AGILITY 8010234, TECHPRO MI3010167 and TECHPRO MI3010168 and the remaining parts above.

This table covers the caps that hold system pressure at the radiator or reservoir neck. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

6 Radiator Cap parts are listed for the 1991 Eagle Summit, from GATES, MOTORAD, CALORSTAT and 1 other brand. MOTORAD T13R carries the "Popular" badge.

The Locking Replacement section lists 3 options from CALORSTAT, GATES and MOTORAD — grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. CALORSTAT RC0213 is listed in this group.

The Standard Replacement section: 3 options from MOTORAD, SKP and GATES. MOTORAD T13R is listed in this group.

This group includes MOTORAD T13R, CALORSTAT RC0213 and GATES 31533 and the remaining parts above.

This table covers the petcocks used to drain the radiator. Read more

This group shows a single part: DORMAN 490216.

This table covers the Radiator Fan motors. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

5 Radiator Fan Motor parts are listed for the 1991 Eagle Summit, from FOUR SEASONS, ACDELCO, GPD and 1 other brand. FOUR SEASONS 35321 carries the "Popular" badge.

Part numbers include FOUR SEASONS 35321, ACDELCO 1581545 and FOUR SEASONS 35000, among others listed above.

This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle. Read more

10 Radiator Hose parts for the 1991 Eagle Summit come from 4 brands — CONTINENTAL, DAYCO, GATES and 1 other brand. The "Popular" part is DAYCO 81041.

The Economy section: 3 options from CONTINENTAL and DAYCO. DAYCO 81041 is listed in this group.

Standard Replacement: 7 parts, from DAYCO, CONTINENTAL, GATES and 1 other brand. A representative part number is DAYCO 70687.

This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender. Read more

16 Temperature Sender / Sensor parts are listed for the 1991 Eagle Summit, from STANDARD MOTOR PRODUCTS, WELLS, SKP and 7 other brands. SKP SKTS198 carries the "Popular" badge.

Economy: 4 parts, from SKP, GPD and STANDARD MOTOR PRODUCTS. A representative part number is SKP SKTS198.

In the Full Service Kit grade, WALKER PRODUCTS supplies 1 part: grouped under the catalog's "Full Service Kit" designation — the notes column spells out what sets them apart. A representative part number is WALKER PRODUCTS 21191022.

The Standard Replacement section: 10 options from WELLS, STANDARD MOTOR PRODUCTS, FACET and 3 other brands. BECK/ARNLEY 2011220 is listed in this group.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part. Read more

21 Thermostat parts for the 1991 Eagle Summit come from 5 brands — MOTORAD, FACET, BECK/ARNLEY and 2 other brands. The "Popular" part is GATES 33488S.

In the Heavy Duty grade, MOTORAD and GATES supply 3 parts: rated for severe service. A representative part number is GATES 33488S.

The Performance section lists 2 options from MOTORAD — engineered beyond original-equipment specification. MOTORAD 2040180 is listed in this group.

Premium: 3 parts, from MOTORAD. A representative part number is MOTORAD 7240180.

Standard Replacement: 13 parts, from MOTORAD, FACET, BECK/ARNLEY and 2 other brands. A representative part number is MOTORAD 240180.

This table covers the seals at the thermostat housing and water outlet. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

9 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 1991 Eagle Summit, from BECK/ARNLEY, FEL-PRO, GATES and 5 other brands. FEL-PRO 35336 carries the "Popular" badge.

Listed part numbers: FEL-PRO 35336, GATES 33644 and APEX AWO2029, plus the other parts above.

This table covers the housings and outlets the thermostat sits in. Read more

This group shows a single part: GPD 8241561.

This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off. Read more

8 Water Pump parts for the 1991 Eagle Summit come from 8 brands — AIRTEX, US MOTOR WORKS, WJB / INMOTION PARTS and 5 other brands. The "Popular" part is AISIN WPM001.

The Economy section: 3 options from AIRTEX, US MOTOR WORKS and WJB / INMOTION PARTS. AIRTEX AW7115 is listed in this group.

Standard Replacement: 4 parts, from AISIN, GMB, BOSCH and 1 other brand. A representative part number is AISIN WPM001.

1 further part sits outside the graded sections, with the same engine-level match.

Listed part numbers: AISIN WPM001, AIRTEX AW7115 and US MOTOR WORKS US7115, plus the other parts above.

This table covers the gaskets between the water pump and the block or housing. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

5 Water Pump Gasket parts are listed for the 1991 Eagle Summit, from APEX, FEL-PRO, MAHLE / CLEVITE and 2 other brands.

Part numbers include APEX AWP3042, FEL-PRO 35225 and MAHLE / CLEVITE K26379, among others listed above.

This table covers the Water Pump Seal O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove. Read more

2 Water Pump Seal / O-Ring parts for the 1991 Eagle Summit come from 2 brands — APEX and FEL-PRO.

This group includes APEX AWP3203 and FEL-PRO ES72872.