1183534 Magnetic Switch Starter Relay for Caterpillar 120H120K 12H 12K 135H 140H
Product Overview
This magnetic switch starter relay 1183534 ensures reliable engine cranking for Caterpillar heavy equipment. The relay acts as an electrical switch that controls high starter current, protecting the ignition system. Designed for Caterpillar graders and related machinery, it offers consistent performance in demanding environments.
Key Features & Performance
- OEM‑spec 1183534 relay for direct fit
- Handles high starter current with low contact resistance
- Sealed housing resists moisture and debris
- Pre‑tested for reliable cold‑cranking operation
Fitment & Compatibility
- Caterpillar 120H
- Caterpillar 120K
- Caterpillar 12H
- Caterpillar 12K
- Caterpillar 135H
- Caterpillar 140H
Common Uses
- Replaces worn starter relays on Caterpillar motor graders
- Ensures positive engine start in construction and mining
- Used in heavy equipment electrical systems for main starter circuit control
Technical Specifications
- Part Number(s): 1183534
Frequently Asked Questions
Q: Will this relay fit a Caterpillar 140M? A: This relay is designed for the 140H, 140K, and listed models; verify your machine’s serial number before ordering.
Q: Does it come with a mounting bracket? A: The relay is sold as a unit; if originally equipped with a bracket, reuse your existing bracket for installation.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.
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