55 Electrical parts are listed for the 1977 Checker Marathon, in 18 part types, covering all 3 engine options (4.1L 250cid L6, 5.0L 305cid V8 and 5.7L 350cid V8). Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 1977 Checker Marathon, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. 21 parts of the 55 listed are Alternator / Generator (8 parts), Battery (7 parts) and Battery Cable (6 parts). The other 15 part types cover the remaining 34 parts.
The 1977 Checker Marathon was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 1977 Checker Marathon electrical parts are STANDARD MOTOR PRODUCTS (15 parts), WELLS (9 parts) and DEKA (8 parts), plus 9 more brands. Quality grades include Remanufactured, AGM and Standard Replacement.
9 parts on this 1977 Checker Marathon page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including ACDELCO 3342114 (Alternator / Generator) and DEKA 9A78DT (Battery). Click any part number to see every vehicle that part fits.
Alternator / Generator
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PURE ENERGY Fits: 5.7L 350cid V8 | 7127109N | 🇺🇸 US 🇨🇦 CA | with Delco AlternatorOE Replacement | View on Amazon |
| PURE ENERGY Fits: 5.7L 350cid V8 | 7127SW3N | 🇺🇸 US 🇨🇦 CA | with 63 Amps Alternator1 Wire Universal GM Alternator | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 5.7L 350cid V8 | 3342114 | 🇺🇸 US 🇨🇦 CA | GoldRemanufactured | View on Amazon |
| ACDELCO Popular Fits: 5.7L 350cid V8 | 3342614 | 🇺🇸 US 🇨🇦 CA | GoldRemanufactured | View on Amazon |
| FVP Fits: 5.7L 350cid V8 | 7127109 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| FVP Fits: 5.7L 350cid V8 | 7127SW3 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 5.7L 350cid V8 | 7127109 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 5.7L 350cid V8 | 7127SW3 | 🇺🇸 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.
8 Alternator / Generator parts are listed for the 1977 Checker Marathon, from PURE ENERGY, ACDELCO and FVP. ACDELCO 3342114 carries the "Popular" badge.
In the New grade, PURE ENERGY supplies 2 parts: brand-new units rather than rebuilt ones. A representative part number is PURE ENERGY 7127109N.
In the Remanufactured grade, ACDELCO, FVP and PURE ENERGY supply 6 parts: factory-rebuilt units with new wear components. A representative part number is ACDELCO 3342114.
This group includes ACDELCO 3342114, PURE ENERGY 7127109N and PURE ENERGY 7127SW3N and the remaining parts above.
Alternator / Generator Brush
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 5.7L 350cid V8 | RX103A | 🇺🇸 US 🇨🇦 CA | Alternator Brush Holder Assembly | View on Amazon |
| WELLS Fits: 5.7L 350cid V8 | 5A1015 | 🇺🇸 US 🇨🇦 CA | with Delco Alternator | View on Amazon |
This table covers the brushes inside the alternator.
2 Alternator / Generator Brush parts are listed for the 1977 Checker Marathon, from STANDARD MOTOR PRODUCTS and WELLS.
This group includes STANDARD MOTOR PRODUCTS RX103A and WELLS 5A1015.
Alternator / Generator Brush Holder
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 5.7L 350cid V8 | RX103A | 🇺🇸 US 🇨🇦 CA | Alternator Brush Holder Assembly | View on Amazon |
This table covers the holders that carry the alternator brushes.
One part is listed for the 1977 Checker Marathon — STANDARD MOTOR PRODUCTS RX103A.
Alternator / Generator Diode Rectifier
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 5.7L 350cid V8 | 2D3001 | 🇺🇸 US 🇨🇦 CA | with Delco AlternatorDiode Trio | View on Amazon |
This table covers the rectifier diode packs in the alternator.
One part is listed for the 1977 Checker Marathon — WELLS 2D3001.
Alternator / Generator Repair Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 5.7L 350cid V8 | AK6 | 🇺🇸 US 🇨🇦 CA | Voltage: 12 | View on Amazon |
This table covers the Alternator / Generator repair kits.
This group shows a single part: STANDARD MOTOR PRODUCTS AK6.
Battery
AGM (Extended Life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular Fits: 5.7L 350cid V8 | 9A78DT | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| FVP Popular Fits: 5.7L 350cid V8 | 78AGMG | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 78 | View on Amazon |
| ACDELCO Fits: 5.7L 350cid V8 | 78XAGM | 🇺🇸 US 🇨🇦 CA | AGMBCI Group: 78 | View on Amazon |
| DEKA Fits: 5.7L 350cid V8 | 9A78 | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| EXIDE Fits: 5.7L 350cid V8 | RF31D | 🇺🇸 US 🇨🇦 CA | RoadforceBCI Group 31 | View on Amazon |
| EXIDE Fits: 5.7L 350cid V8 | XRF31D | 🇺🇸 US 🇨🇦 CA | RoadforceBCI Group 31 | View on Amazon |
Performance AGM (Extended Life + Increased Power)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FULLRIVER Fits: 5.7L 350cid V8 | FT82578 | 🇺🇸 US 🇨🇦 CA | AGMBCI Group 78 | 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 for the 1977 Checker Marathon come from 5 brands — DEKA, EXIDE, FVP and 2 other brands. The "Popular" part is DEKA 9A78DT.
In the AGM (Extended Life) grade, DEKA, EXIDE, FVP and 1 other brand supply 6 parts: grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. A representative part number is DEKA 9A78DT.
In the Performance AGM (Extended Life + Increased Power) grade, FULLRIVER supplies 1 part: grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. A representative part number is FULLRIVER FT82578.
Part numbers include DEKA 9A78DT, FVP 78AGMG and ACDELCO 78XAGM, among others listed above.
Battery Cable
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 5.7L 350cid V8 | DR31A | 🇺🇸 US 🇨🇦 CA | Direct OE ReplacementMaterial: Steel | View on Amazon |
| WELLS Popular Fits: 5.7L 350cid V8 | 4C4000 | 🇺🇸 US 🇨🇦 CA | Ignition Coil Ground Strap | View on Amazon |
| DEKA Fits: 5.7L 350cid V8 | 00813 | 🇺🇸 US 🇨🇦 CA | Black4 Gauge | View on Amazon |
| DEKA Fits: 5.7L 350cid V8 | 00308 | 🇺🇸 US 🇨🇦 CA | Black4 Gauge | View on Amazon |
| DEKA Fits: 5.7L 350cid V8 | 00332 | 🇺🇸 US 🇨🇦 CA | Red4 Gauge | View on Amazon |
| DEKA Fits: 5.7L 350cid V8 | 00305 | 🇺🇸 US 🇨🇦 CA | Red4 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.
6 Battery Cable parts are listed for the 1977 Checker Marathon, from DEKA, STANDARD MOTOR PRODUCTS and WELLS. STANDARD MOTOR PRODUCTS DR31A carries the "Popular" badge.
Listed part numbers: STANDARD MOTOR PRODUCTS DR31A, WELLS 4C4000 and DEKA 00813, plus the other parts above.
Battery Terminal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Fits: 5.7L 350cid V8 | 00350 | 🇺🇸 US 🇨🇦 CA | Top Post Terminal | View on Amazon |
| DEKA Fits: 5.7L 350cid V8 | 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.
2 Battery Terminal parts for the 1977 Checker Marathon come from DEKA.
This group includes DEKA 00350 and DEKA 01056.
Flasher
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 5.7L 350cid V8 | EFL552 | 🇺🇸 US 🇨🇦 CA | Electronic Flasher, Hazard Warningwith Metal Housing | View on Amazon |
| HOLSTEIN Fits: 5.7L 350cid V8 | 2RSW0035 | 🇺🇸 US 🇨🇦 CA | with Metal Housingwith 2 Blade Terminal | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 5.7L 350cid V8 | EFL1 | 🇺🇸 US 🇨🇦 CA | Electronic Flasher, Hazard Warningwith Plastic Housing | View on Amazon |
| TRIDON / NOVITA Fits: 5.7L 350cid V8 | LF12 | 🇺🇸 US 🇨🇦 CA | Loud Flasher2 Terminal | View on Amazon |
| TRIDON / NOVITA Fits: 5.7L 350cid V8 | LF12K | 🇺🇸 US 🇨🇦 CA | Loud Flasher | View on Amazon |
This table covers the flasher units that blink the turn signals and hazards.
5 Flasher parts for the 1977 Checker Marathon come from 3 brands — STANDARD MOTOR PRODUCTS, TRIDON / NOVITA and HOLSTEIN. The "Popular" part is STANDARD MOTOR PRODUCTS EFL552.
Listed part numbers: STANDARD MOTOR PRODUCTS EFL552, HOLSTEIN 2RSW0035 and STANDARD MOTOR PRODUCTS EFL1, plus the other parts above.
Horn
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 5.7L 350cid V8 | HN20 | 🇺🇸 US 🇨🇦 CA | Low Tone | View on Amazon |
| WELLS Fits: 5.7L 350cid V8 | 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 for the 1977 Checker Marathon come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.
This group includes STANDARD MOTOR PRODUCTS HN20 and WELLS 1H1001.
Radio Capacitor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 5.7L 350cid V8 | RC3 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: 5.7L 350cid V8 | 1B1003 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the capacitors that suppress radio noise.
2 Radio Capacitor parts for the 1977 Checker Marathon come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS RC3 and WELLS 1B1003.
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.
One part is listed for the 1977 Checker Marathon — ARP 4303501.
Starter Brush
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 5.7L 350cid V8 | RX60 | 🇺🇸 US 🇨🇦 CA | Width (In): 3/4 | View on Amazon |
| WELLS Fits: 5.7L 350cid V8 | 5A1011 | 🇺🇸 US 🇨🇦 CA | with Delco Starter | View on Amazon |
This table covers the brushes inside the starter motor.
2 Starter Brush parts for the 1977 Checker Marathon come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.
Listed part numbers: STANDARD MOTOR PRODUCTS RX60 and WELLS 5A1011.
Starter Drive
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 5.7L 350cid V8 | SDN1A | 🇺🇸 US 🇨🇦 CA | Direct OE Replacement Number of Gear Teeth 9 | View on Amazon |
This table covers the starter drives that engage the flywheel ring gear.
This group shows a single part: STANDARD MOTOR PRODUCTS SDN1A.
Starter Motor
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PURE ENERGY Popular Fits: 5.7L 350cid V8 | 3510MSN | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FVP Fits: 5.7L 350cid V8 | 3510MSN | 🇺🇸 US 🇨🇦 CA | New | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 5.7L 350cid V8 | 3361824 | 🇺🇸 US 🇨🇦 CA | GoldRemanufactured | View on Amazon |
| FVP Fits: 5.7L 350cid V8 | 3510S | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 5.7L 350cid V8 | 3510S | 🇺🇸 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.
5 Starter Motor parts are listed for the 1977 Checker Marathon, from PURE ENERGY, FVP and ACDELCO. PURE ENERGY 3510MSN carries the "Popular" badge.
New: 2 parts, from PURE ENERGY and FVP. A representative part number is PURE ENERGY 3510MSN.
Remanufactured: 3 parts, from ACDELCO, FVP and PURE ENERGY. A representative part number is ACDELCO 3361824.
Listed part numbers: PURE ENERGY 3510MSN and ACDELCO 3361824, plus the other parts above.
Starter Solenoid
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FAMOUS BRAND Fits: 5.7L 350cid V8 | 84016 | 🇺🇸 US 🇨🇦 CA | New Solenoid | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 5.7L 350cid V8 | SS200T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 5.7L 350cid V8 | SS200 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: 5.7L 350cid V8 | 1M1027A | 🇺🇸 US 🇨🇦 CA | Premium | View on Amazon |
| WELLS Fits: 5.7L 350cid V8 | 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 are listed for the 1977 Checker Marathon, from STANDARD MOTOR PRODUCTS, WELLS and FAMOUS BRAND. STANDARD MOTOR PRODUCTS SS200 carries the "Popular" badge.
In the Economy grade, FAMOUS BRAND and STANDARD MOTOR PRODUCTS supply 2 parts: the catalog's value-priced group. A representative part number is FAMOUS BRAND 84016.
The Standard Replacement section lists 3 options from WELLS and STANDARD MOTOR PRODUCTS — built to original-equipment specification. STANDARD MOTOR PRODUCTS SS200 is listed in this group.
This group includes STANDARD MOTOR PRODUCTS SS200, FAMOUS BRAND 84016 and STANDARD MOTOR PRODUCTS SS200T and the remaining parts above.
Starter Solenoid Repair Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 5.7L 350cid V8 | SS408K | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Starter Solenoid repair kits.
This group shows a single part: STANDARD MOTOR PRODUCTS SS408K.
Voltage Regulator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 5.7L 350cid V8 | VR111T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 5.7L 350cid V8 | VR111 | 🇺🇸 US 🇨🇦 CA | Direct OE Replacement12 Volt | View on Amazon |
| WELLS Fits: 5.7L 350cid V8 | 1V1032 | 🇺🇸 US 🇨🇦 CA | with Delco Alternator | View on Amazon |
This table covers the regulators that control alternator output voltage.
3 Voltage Regulator parts for the 1977 Checker Marathon come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.
The Economy section: 1 option from STANDARD MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS VR111T is listed in this group.
Standard Replacement: 2 parts, from STANDARD MOTOR PRODUCTS and WELLS. A representative part number is STANDARD MOTOR PRODUCTS VR111.
This group includes STANDARD MOTOR PRODUCTS VR111T, STANDARD MOTOR PRODUCTS VR111 and WELLS 1V1032.
Buying Electrical Parts for a 1977 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. Every electrical part here is 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: Alternator / Generator and Battery .
Frequently Asked Questions
How many electrical parts fit the 1977 Checker Marathon?
Our catalog currently lists 55 electrical parts for the 1977 Checker Marathon across 18 subcategories and 12 brands, covering all 3 engine options (4.1L 250cid L6, 5.0L 305cid V8 and 5.7L 350cid V8). Each part is matched to the engine(s) it fits.
Do electrical parts differ between 1977 Checker Marathon engines?
Yes. Every electrical part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. 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 1977 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 1977 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 1977 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 1977 Checker Marathon
Electrical Parts for Other Checker Marathon Years
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