Starter Solenoid Relay for 1993-2002 Polaris Trail Boss 250 and 325
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- 1993-2002 Polaris Trail Boss 250 applications using a listed relay number
- 1993-2002 Polaris Trail Boss 325 applications using a listed relay number
Product Overview
A single click with no crank—or a starter that works only when the relay terminals are bypassed—often points to burned solenoid contacts after the battery, cables, starter, and safety circuit have been checked.
Restores the high-current switching path between the battery and starter motor on compatible Trail Boss ATVs. This listing is organized around the actual repair decision: what failed, what the part does, which applications are known, and what must match before purchase.
Match the original relay number, 12-volt wiring layout, terminal studs, control plug, approximately 52 mm mounting spacing, and model year.
Key Features & Performance
- Restores the high-current switching path between the battery and starter motor on compatible Trail Boss ATVs.
- Reference numbers are stated for direct cross-checking: 21164-515, 3083211, 3085521, 3087196, 4010930, 4011335
- Compatibility checks call out the connector, dimensions, engine, trim, or system details that can change fitment
- Intended for a confirmed starter solenoid relay repair, replacement, restoration, maintenance need, or functional upgrade
- Aftermarket replacement for the compatible applications listed below
Replaces Part Numbers
- 21164-515
- 3083211
- 3085521
- 3087196
- 4010930
- 4011335
Common Uses
- Replacing the original starter solenoid relay after its failure or service need has been confirmed
- Restores the high-current switching path between the battery and starter motor on compatible Trail Boss ATVs.
- Addressing the buying situation described in the overview: a single click with no crank—or a starter that works only when the relay terminals are bypassed—often points to burned solenoid contacts after the battery, cables, starter, and safety circuit have been checked.
- Completing a repair while also checking related components that could reproduce the same symptom
Technical Specifications
- Product Type: Starter solenoid relay
- Electrical System: 12 volt
- Application: Polaris Trail Boss 250 and 325
- Mounting: Approximately 52 mm center spacing where applicable
- Replacement Type: Aftermarket
Installation & Fitment
- Disconnect the negative battery cable first
- Clean and tighten battery and engine grounds
- Verify the start button and neutral/safety circuit can trigger the relay
- Protect terminal boots and route cables away from heat and abrasion
Compatibility Notice
Match the original relay number, 12-volt wiring layout, terminal studs, control plug, approximately 52 mm mounting spacing, and model year. Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown. The original component, dimensions, connector or mounting details, equipment build data, and applicable service information remain the final fitment references.
Frequently Asked Questions
Q: What symptoms or repair need can point to this part? A: A single click with no crank—or a starter that works only when the relay terminals are bypassed—often points to burned solenoid contacts after the battery, cables, starter, and safety circuit have been checked.
Q: What does this replacement restore? A: Restores the high-current switching path between the battery and starter motor on compatible Trail Boss ATVs.
Q: What is the most important fitment check? A: Match the original relay number, 12-volt wiring layout, terminal studs, control plug, approximately 52 mm mounting spacing, and model year.
Q: Which applications are listed? A: The known applications are 1993-2002 Polaris Trail Boss 250 applications using a listed relay number; 1993-2002 Polaris Trail Boss 325 applications using a listed relay number. Match the original relay number, 12-volt wiring layout, terminal studs, control plug, approximately 52 mm mounting spacing, and model year.
Q: Is this supplied by the original equipment brand? A: No. It is an aftermarket replacement for compatible applications and is not manufactured or supplied by the vehicle or equipment brand.
Part Summary
keywords: Polaris Trail Boss starter solenoid, 4010930 relay replacement, Trail Boss 250 no crank repair, Trail Boss 325 starter relay, ATV clicking no start part, 12V Polaris solenoid
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.