The 1971 Iso Grifo has 38 cooling system parts with verified fitment on this page — 4 part types and 8 brands, covering both the 5.3L V8 and the 7.0L V8. Each part includes a manufacturer part number and application notes.
On the 1971 Iso Grifo, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. 35 parts of the 38 listed are Coolant / Antifreeze (16 parts), Water Pump Gasket (13 parts) and Thermostat / Thermostat Housing / Water Outlet Seal (6 parts). The other 1 part type covers the remaining 3 parts.
The 1971 Iso Grifo was sold with both the 5.3L V8 and the 7.0L V8. 22 parts fit every engine; the other 16 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 1971 Iso Grifo cooling system parts are PEAK (8 parts), FEL-PRO (7 parts) and MAHLE / CLEVITE (7 parts), plus 5 more brands. Quality grades include Standard Replacement, Economy and Premium.
10 parts on this 1971 Iso Grifo page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and FEL-PRO 35062 (Thermostat / Thermostat Housing / Water Outlet Seal). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Fits: all 1971 Grifo engines | AF3055 | 🇺🇸 US | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular Fits: all 1971 Grifo engines | MV5050GAL | 🇺🇸 US | Extended LifeAll Makes / All Models | View on Amazon |
| PRESTONE Popular Fits: all 1971 Grifo engines | AF3100 | 🇺🇸 US | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| PEAK Fits: all 1971 Grifo engines | BQA1GAL | 🇺🇸 US | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| VALVOLINE Fits: all 1971 Grifo engines | 719009 | 🇺🇸 US | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular Fits: all 1971 Grifo engines | AF2100 | 🇺🇸 US | All Vehicles10yr/300k mi | View on Amazon |
| PEAK Fits: all 1971 Grifo engines | PKP1GAL | 🇺🇸 US | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK Fits: all 1971 Grifo engines | PXA1GAL | 🇺🇸 US | Global Lifetime1 Gallon | View on Amazon |
| PRESTONE Fits: all 1971 Grifo engines | AFMAX | 🇺🇸 US | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular Fits: all 1971 Grifo engines | AF3300 | 🇺🇸 US | Prime Conventional Green 1 Gallon | View on Amazon |
| FVP Fits: all 1971 Grifo engines | GREEN5050GAL | 🇺🇸 US | Low Silicate Blend1 Gallon | View on Amazon |
| PEAK Fits: all 1971 Grifo engines | BMA1GAL | 🇺🇸 US | Blue Mountain Conventional Green1 Gallon | View on Amazon |
| PEAK Fits: all 1971 Grifo engines | RUA1GAL | 🇺🇸 US | Conventional Green1 Gallon | View on Amazon |
| PEAK Fits: all 1971 Grifo engines | FFA1GAL | 🇺🇸 US | Full Force Conventional Green1 Gallon | View on Amazon |
| PEAK Fits: all 1971 Grifo engines | PEB1GAL | 🇺🇸 US | OET European Extended Life Blue1 Gallon | View on Amazon |
| PEAK Fits: all 1971 Grifo engines | SEP1GAL | 🇺🇸 US | Sierra Conventional Green Concentrate Low Toxic Option1 Gallon | View on Amazon |
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.
16 Coolant / Antifreeze parts for the 1971 Iso Grifo come from 4 brands — PEAK, PRESTONE, FVP and 1 other brand. The "Popular" part is FVP MV5050GAL. Every part fits both the 5.3L V8 and the 7.0L V8.
In the Compatible With All Colors grade, PRESTONE supplies 1 part: grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. A representative part number is PRESTONE AF3055.
The Economy section lists 4 options from FVP, PRESTONE, PEAK and 1 other brand — the catalog's value-priced group. FVP MV5050GAL is listed in this group.
In the Premium grade, PRESTONE and PEAK supply 4 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.
In the Standard Replacement grade, PEAK, PRESTONE and FVP supply 7 parts: built to original-equipment specification. A representative part number is PRESTONE AF3300.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: all 1971 Grifo engines | 35062 | 🇺🇸 US | 1-13/16 (In) Inside DiameterComposite Material | View on Amazon |
| FEL-PRO Popular Fits: all 1971 Grifo engines | 35562T | 🇺🇸 US | Permadryplus | View on Amazon |
| MAHLE / CLEVITE Fits: all 1971 Grifo engines | C25930 | 🇺🇸 US | Paper | View on Amazon |
| MAHLE / CLEVITE Fits: all 1971 Grifo engines | C24109 | 🇺🇸 US | PaperUniversal Type | View on Amazon |
| MAHLE / CLEVITE Fits: all 1971 Grifo engines | C32721 | 🇺🇸 US | Molded Rubber with Plastic CarrierWater Outlet Seal | View on Amazon |
| VICTOR REINZ Fits: all 1971 Grifo engines | 711359200 | 🇺🇸 US | Rigid CarrierWater Outlet | View on Amazon |
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.
6 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 1971 Iso Grifo come from 3 brands — MAHLE / CLEVITE, FEL-PRO and VICTOR REINZ. The "Popular" part is FEL-PRO 35062. Every part fits both the 5.3L V8 and the 7.0L V8.
Listed part numbers: FEL-PRO 35062, FEL-PRO 35562T and MAHLE / CLEVITE C25930, plus the other parts above.
Water Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 5.3L V8 | 5152 | 🇺🇸 US | To Block3 Bolt Gasket | View on Amazon |
| FEL-PRO Popular Fits: 5.3L V8 | ES73030 | 🇺🇸 US | Gasket Kit | View on Amazon |
| FEL-PRO Popular Fits: 7.0L V8 | 30060 | 🇺🇸 US | To Block | View on Amazon |
| FEL-PRO Popular Fits: 7.0L V8 | 11725 | 🇺🇸 US | To BlockBacking Plate | View on Amazon |
| FEL-PRO Fits: 5.3L V8 | 13032 | 🇺🇸 US | To BlockBacking Plate | View on Amazon |
| MAHLE / CLEVITE Fits: 5.3L V8 | K25935 | 🇺🇸 US | Paper | View on Amazon |
| MAHLE / CLEVITE Fits: 5.3L V8 | K27091 | 🇺🇸 US | Paper | View on Amazon |
| MAHLE / CLEVITE Fits: 7.0L V8 | K26632 | 🇺🇸 US | Paper | View on Amazon |
| MAHLE / CLEVITE Fits: 7.0L V8 | K27078 | 🇺🇸 US | Paper | View on Amazon |
| VICTOR REINZ Fits: 5.3L V8 | 711465400 | 🇺🇸 US | Paper | View on Amazon |
| VICTOR REINZ Fits: 5.3L V8 | 711465700 | 🇺🇸 US | Paper | View on Amazon |
| VICTOR REINZ Fits: 7.0L V8 | 711409500 | 🇺🇸 US | To Block | View on Amazon |
| VICTOR REINZ Fits: 7.0L V8 | 711465600 | 🇺🇸 US | Paper | View on Amazon |
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.
13 Water Pump Gasket parts for the 1971 Iso Grifo come from 3 brands — FEL-PRO, MAHLE / CLEVITE and VICTOR REINZ. The "Popular" part is FEL-PRO 5152.
Water Pump Stud Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP Fits: 5.3L V8 | 1343204 | 🇺🇸 US 🇨🇦 CA | Hex Bolt Head | View on Amazon |
| ARP Fits: 5.3L V8 | 1343203 | 🇺🇸 US 🇨🇦 CA | Black Oxide12 Point Bolt Head | View on Amazon |
| ARP Fits: 5.3L V8 | 4343203 | 🇺🇸 US 🇨🇦 CA | Stainless Steel12 Point Bolt Head | View on Amazon |
This table covers the Water Pump Stud kits.
ARP supplies the 3 Water Pump Stud Kit parts for the 1971 Iso Grifo.
Part numbers include ARP 1343204, ARP 1343203 and ARP 4343203.
Buying Cooling System Parts for a 1971 Iso Grifo
On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
- Match the engine first. Some cooling system parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Coolant / Antifreeze and Water Pump Gasket .
Frequently Asked Questions
How many cooling system parts fit the 1971 Iso Grifo?
Our catalog currently lists 38 cooling system parts for the 1971 Iso Grifo across 4 subcategories and 8 brands, covering both the 5.3L V8 and the 7.0L V8. Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 1971 Iso Grifo engines?
Some do. 22 parts fit every engine; the other 16 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of cooling system problems on a 1971 Iso Grifo?
Common symptoms include a rising temperature gauge in traffic, sweet-smelling steam, crusty deposits around hose clamps, or a heater that blows cold. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 1971 Iso Grifo was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 1971 Iso Grifo?
First match the engine — each row shows which engine(s) the part fits. Then replace coolant with the exact specification the manufacturer calls for — mixing chemistries can gel and block small passages. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1971 Iso Grifo
Cooling System Parts for Other Iso Grifo Years
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