The 1972 Checker Marathon has 57 electrical parts with verified fitment on this page — 15 part types and 17 brands, covering both the 4.1L 250cid L6 and the 5.7L 350cid V8. Each part includes a manufacturer part number and application notes.
On the 1972 Checker Marathon, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. 22 parts of the 57 listed are Starter Motor (8 parts), Alternator / Generator (7 parts) and Battery (7 parts). The other 12 part types cover the remaining 35 parts.
The 1972 Checker Marathon was sold with both the 4.1L 250cid L6 and the 5.7L 350cid V8. 48 parts fit every engine; the other 9 are engine-specific. Each part shows which engine(s) it fits.
17 brands supply electrical parts for the 1972 Checker Marathon, led by STANDARD MOTOR PRODUCTS (10 parts), WELLS (8 parts) and FVP (7 parts), plus 14 more brands. Quality grades include Remanufactured, Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1972 Checker Marathon. 8 parts have it, including ACDELCO 3342110 (Alternator / Generator) and ACDELCO 203FF (Alternator / Generator End Bearing). Each part number opens a page with every vehicle that part fits.
Alternator / Generator
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Fits: all 1972 Marathon engines | 7122103N | 🇺🇸 US 🇨🇦 CA | New | View on Amazon |
| PURE ENERGY Fits: all 1972 Marathon engines | 7122103N | 🇺🇸 US 🇨🇦 CA | with Delco Alternator | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: all 1972 Marathon engines | 3342110 | 🇺🇸 US 🇨🇦 CA | GoldRemanufactured | View on Amazon |
| PURE ENERGY Popular Fits: all 1972 Marathon engines | 7122103 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| FVP Fits: all 1972 Marathon engines | 7122103 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| FVP Fits: all 1972 Marathon engines | 7429112 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY Fits: all 1972 Marathon engines | 7429112 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator.
7 Alternator / Generator parts for the 1972 Checker Marathon come from 3 brands — FVP, PURE ENERGY and ACDELCO. The "Popular" part is ACDELCO 3342110. Every part fits both the 4.1L 250cid L6 and the 5.7L 350cid V8.
The New section lists 2 options from FVP and PURE ENERGY — brand-new units rather than rebuilt ones. FVP 7122103N is listed in this group.
The Remanufactured section lists 5 options from PURE ENERGY, FVP and ACDELCO — factory-rebuilt units with new wear components. ACDELCO 3342110 is listed in this group.
This group includes ACDELCO 3342110 and FVP 7122103N and the remaining parts above.
Alternator / Generator End Bearing
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Fits: all 1972 Marathon engines | RB62032RS | 🇺🇸 US 🇨🇦 CA | Two Seal Stylewith 55 Amps Alternator | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: all 1972 Marathon engines | 203FF | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| BCA Fits: all 1972 Marathon engines | NB203FF | 🇺🇸 US 🇨🇦 CA | with 2 Seal Designwith 55 Amps Alternator | View on Amazon |
| NATIONAL Fits: all 1972 Marathon engines | 203FF | 🇺🇸 US 🇨🇦 CA | Two Seal Stylewith 55 Amps Alternator | View on Amazon |
| SKF Fits: all 1972 Marathon engines | 62032RSJ | 🇺🇸 US 🇨🇦 CA | Drive Endwith 55 Amps Alternator | View on Amazon |
This table covers the bearings in the alternator housing. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
5 Alternator / Generator End Bearing parts are listed for the 1972 Checker Marathon, from WJB / INMOTION PARTS, ACDELCO, BCA and 2 other brands. ACDELCO 203FF carries the "Popular" badge. All of them fit every engine offered in the 1972 Marathon.
In the Economy grade, WJB / INMOTION PARTS supplies 1 part: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS RB62032RS.
The Standard Replacement section lists 4 options from ACDELCO, BCA, NATIONAL and 1 other brand — built to original-equipment specification. ACDELCO 203FF is listed in this group.
Part numbers include ACDELCO 203FF, WJB / INMOTION PARTS RB62032RS and BCA NB203FF, among others listed above.
Battery
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular Fits: all 1972 Marathon engines | 9A78DT | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| FVP Popular Fits: all 1972 Marathon engines | P24AGM | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 24 | View on Amazon |
| DEKA Fits: all 1972 Marathon engines | 9A34 | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| EXIDE Fits: all 1972 Marathon engines | MX24 | 🇺🇸 US 🇨🇦 CA | Marathon MaxBCI Group 24 | View on Amazon |
| EXIDE Fits: all 1972 Marathon engines | RF31D | 🇺🇸 US 🇨🇦 CA | RoadforceBCI Group 31 | View on Amazon |
| EXIDE Fits: all 1972 Marathon engines | XRF31D | 🇺🇸 US 🇨🇦 CA | RoadforceBCI Group 31 | View on Amazon |
| FVP Fits: all 1972 Marathon engines | P24RAGM | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 24 | View on Amazon |
This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery.
7 Battery parts are listed for the 1972 Checker Marathon, from EXIDE, DEKA and FVP. DEKA 9A78DT carries the "Popular" badge. All of them fit every engine offered in the 1972 Marathon.
Part numbers include DEKA 9A78DT, FVP P24AGM and DEKA 9A34, among others listed above.
Battery Cable
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Fits: 5.7L 350cid V8 | 00296 | 🇺🇸 US | Red4 Gauge | View on Amazon |
| DEKA Fits: 5.7L 350cid V8 | 00297 | 🇺🇸 US | Red4 Gauge | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 4.1L 250cid L6 | A581 | 🇺🇸 US 🇨🇦 CA | PositiveBATTERY TO SWITCH | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 4.1L 250cid L6 | 4225N | 🇺🇸 US 🇨🇦 CA | 25" Cable4-Gauge | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 4.1L 250cid L6 | 4232 | 🇺🇸 US 🇨🇦 CA | 32" Cable4-Gauge | View on Amazon |
This table covers the positive and ground cables that run from the battery. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early.
5 Battery Cable parts for the 1972 Checker Marathon come from 3 brands — DEKA, UNITED MOTOR PRODUCTS and STANDARD MOTOR PRODUCTS.
Part numbers include DEKA 00296, DEKA 00297 and STANDARD MOTOR PRODUCTS A581, among others listed above.
Battery Terminal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Fits: all 1972 Marathon engines | 00350 | 🇺🇸 US 🇨🇦 CA | Top Post Terminal | View on Amazon |
| DEKA Fits: all 1972 Marathon engines | 01056 | 🇺🇸 US 🇨🇦 CA | Top Post Terminal Lead Free | View on Amazon |
This table covers the terminals and clamps that connect cables to the battery posts.
DEKA supplies both parts for the 1972 Checker Marathon. All of them fit every engine offered in the 1972 Marathon.
This group includes DEKA 00350 and DEKA 01056.
Flasher
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: all 1972 Marathon engines | 2RSW0035 | 🇺🇸 US 🇨🇦 CA | with Metal Housingwith 2 Blade Terminal | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 1972 Marathon engines | EFL552 | 🇺🇸 US 🇨🇦 CA | Electronic Flasher, Hazard Warningwith Metal Housing | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 1972 Marathon engines | EFL1 | 🇺🇸 US 🇨🇦 CA | Electronic Flasher, Hazard Warningwith Plastic Housing | View on Amazon |
| TRIDON / NOVITA Fits: all 1972 Marathon engines | 552 | 🇺🇸 US 🇨🇦 CA | Thermal Flasher | View on Amazon |
This table covers the flasher units that blink the turn signals and hazards.
4 Flasher parts are listed for the 1972 Checker Marathon, from STANDARD MOTOR PRODUCTS, HOLSTEIN and TRIDON / NOVITA. All of them fit every engine offered in the 1972 Marathon.
Listed part numbers: HOLSTEIN 2RSW0035, STANDARD MOTOR PRODUCTS EFL552 and STANDARD MOTOR PRODUCTS EFL1, plus the other parts above.
Horn
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 1972 Marathon engines | HN20 | 🇺🇸 US 🇨🇦 CA | Low Tone | View on Amazon |
| WELLS Fits: all 1972 Marathon engines | 1H1001 | 🇺🇸 US 🇨🇦 CA | Low Note HornUniversal mount for 12 Volt negative ground systems. | View on Amazon |
This table covers the horns mounted in the front of the vehicle.
2 Horn parts are listed for the 1972 Checker Marathon, from STANDARD MOTOR PRODUCTS and WELLS. All of them fit every engine offered in the 1972 Marathon.
This group includes STANDARD MOTOR PRODUCTS HN20 and WELLS 1H1001.
Starter Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP Fits: 5.7L 350cid V8 | 4303501 | 🇺🇸 US 🇨🇦 CA | 12 Point Bolt Head | View on Amazon |
This table covers the Starter bolts.
This group shows a single part: ARP 4303501.
Starter Brush
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FAMOUS BRAND Fits: all 1972 Marathon engines | XAA1021 | 🇺🇸 US 🇨🇦 CA | Starter Brush or BrushesStarter # 11113653 | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 1972 Marathon engines | RX60 | 🇺🇸 US 🇨🇦 CA | Width (In): 3/4 | View on Amazon |
| WELLS Fits: all 1972 Marathon engines | 5A1011 | 🇺🇸 US 🇨🇦 CA | Starter # 1108360,1108361,1108365,1108420 | View on Amazon |
| WELLS Fits: all 1972 Marathon engines | 5A1046 | 🇺🇸 US 🇨🇦 CA | Starter # 1113653 | View on Amazon |
This table covers the brushes inside the starter motor.
4 Starter Brush parts are listed for the 1972 Checker Marathon, from WELLS, FAMOUS BRAND and STANDARD MOTOR PRODUCTS. All of them fit every engine offered in the 1972 Marathon.
Part numbers include FAMOUS BRAND XAA1021, STANDARD MOTOR PRODUCTS RX60 and WELLS 5A1011, among others listed above.
Starter Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 1972 Marathon engines | 7A1005 | 🇺🇸 US 🇨🇦 CA | Drive EndStarter # 1108360 | View on Amazon |
| WELLS Fits: all 1972 Marathon engines | 7A1006 | 🇺🇸 US 🇨🇦 CA | Drive EndStarter # 1108361,1108365 | View on Amazon |
This table covers the Starter bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
WELLS supplies both parts for the 1972 Checker Marathon. All of them fit every engine offered in the 1972 Marathon.
This group includes WELLS 7A1005 and WELLS 7A1006.
Starter Drive
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FAMOUS BRAND Fits: all 1972 Marathon engines | SDC1005 | 🇺🇸 US 🇨🇦 CA | New Starter DriveDELCO | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 1972 Marathon engines | SDN1A | 🇺🇸 US 🇨🇦 CA | Direct OE Replacement Number of Gear Teeth 9 | View on Amazon |
| WELLS Fits: all 1972 Marathon engines | 2K1000 | 🇺🇸 US 🇨🇦 CA | with Delco Starter | View on Amazon |
This table covers the starter drives that engage the flywheel ring gear.
3 Starter Drive parts are listed for the 1972 Checker Marathon, from FAMOUS BRAND, STANDARD MOTOR PRODUCTS and WELLS. All of them fit every engine offered in the 1972 Marathon.
Listed part numbers: FAMOUS BRAND SDC1005, STANDARD MOTOR PRODUCTS SDN1A and WELLS 2K1000.
Starter Motor
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PURE ENERGY Popular Fits: all 1972 Marathon engines | 3838SN | 🇺🇸 US 🇨🇦 CA | Automatic trans. | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: all 1972 Marathon engines | 3361860 | 🇺🇸 US 🇨🇦 CA | GoldRemanufactured | View on Amazon |
| ACDELCO Fits: 4.1L 250cid L6 | 3361849 | 🇺🇸 US 🇨🇦 CA | Gold / ProfessionalRemanufactured | View on Amazon |
| FVP Fits: 4.1L 250cid L6 | 3635S | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| FVP Fits: all 1972 Marathon engines | 3664S | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| MARELLI Fits: all 1972 Marathon engines | RMMSR00109 | 🇺🇸 US 🇨🇦 CA | Reman. | View on Amazon |
| PURE ENERGY Fits: 4.1L 250cid L6 | 3635S | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY Fits: all 1972 Marathon engines | 3664S | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
This table covers the starter motors that crank the engine. 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.
8 Starter Motor parts for the 1972 Checker Marathon come from 4 brands — PURE ENERGY, ACDELCO, FVP and 1 other brand. The "Popular" part is PURE ENERGY 3838SN. 5 parts fit every engine; the other 3 are engine-specific.
The New section: 1 option from PURE ENERGY. PURE ENERGY 3838SN is listed in this group.
The Remanufactured section: 7 options from ACDELCO, FVP, PURE ENERGY and 1 other brand. ACDELCO 3361860 is listed in this group.
This group includes PURE ENERGY 3838SN, ACDELCO 3361860 and ACDELCO 3361849 and the remaining parts above.
Starter Solenoid
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FAMOUS BRAND Fits: all 1972 Marathon engines | 84016 | 🇺🇸 US 🇨🇦 CA | New Solenoid | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 1972 Marathon engines | SS200T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: all 1972 Marathon engines | SS200 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: all 1972 Marathon engines | 1M1027A | 🇺🇸 US 🇨🇦 CA | Premium | View on Amazon |
| WELLS Fits: all 1972 Marathon engines | 1M1027 | 🇺🇸 US 🇨🇦 CA | Mounting Hardware Included: YES | View on Amazon |
This table covers the Starter solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid.
5 Starter Solenoid parts for the 1972 Checker Marathon come from 3 brands — STANDARD MOTOR PRODUCTS, WELLS and FAMOUS BRAND. The "Popular" part is STANDARD MOTOR PRODUCTS SS200. Every part fits both the 4.1L 250cid L6 and the 5.7L 350cid V8.
The Economy section: 2 options from FAMOUS BRAND and STANDARD MOTOR PRODUCTS. FAMOUS BRAND 84016 is listed in this group.
Standard Replacement: 3 parts, from WELLS and STANDARD MOTOR PRODUCTS. A representative part number is STANDARD MOTOR PRODUCTS SS200.
Listed part numbers: STANDARD MOTOR PRODUCTS SS200, FAMOUS BRAND 84016 and STANDARD MOTOR PRODUCTS SS200T, plus the other parts above.
Starter Solenoid Repair Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 1972 Marathon engines | SS408K | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Starter Solenoid repair kits.
One part is listed for the 1972 Checker Marathon — STANDARD MOTOR PRODUCTS SS408K.
Voltage Regulator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 1972 Marathon engines | VR114 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the regulators that control alternator output voltage.
One part is listed for the 1972 Checker Marathon — STANDARD MOTOR PRODUCTS VR114.
Buying Electrical Parts for a 1972 Checker Marathon
On this vehicle, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors.
- Match the engine first. Some electrical 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, clean or renew the battery terminals and grounds with any charging-system repair.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Starter Motor and Alternator / Generator .
Frequently Asked Questions
How many electrical parts fit the 1972 Checker Marathon?
Our catalog currently lists 57 electrical parts for the 1972 Checker Marathon across 15 subcategories and 17 brands, covering both the 4.1L 250cid L6 and the 5.7L 350cid V8. Each part is matched to the engine(s) it fits.
Do electrical parts differ between 1972 Checker Marathon engines?
Some do. 48 parts fit every engine; the other 9 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 electrical problems on a 1972 Checker Marathon?
Common symptoms include slow cranking on cold mornings, a battery light that flickers, dim lights at idle, or a check-engine code pointing at a sensor circuit. 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, clean or renew the battery terminals and grounds with any charging-system repair.
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 1972 Checker Marathon 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 1972 Checker Marathon?
First match the engine — each row shows which engine(s) the part fits. Then test before replacing — a failed alternator and a bad ground can look identical, and sensors are frequently condemned for wiring faults. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1972 Checker Marathon
Electrical Parts for Other Checker Marathon Years
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