Skip to product information
Usually ships in 2–4 business days.
Belt Tensioner for Caterpillar CAT 3406E C9 3126 C7 Engine 190-0642 138-2514
$115.69
Sale price
$115.69
Regular price
Available to Order
This Belt Tensioner is a high-quality aftermarket replacement part compatible with Caterpillar CAT 3406E, C9, 3126, and C7 Engines and matches OEM Part# 190-0642, 138-2514.
Need help finding the right part? Talk with a parts expert today.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
Randy W. — Verified customer
Product Overview
This heavy-duty belt tensioner is engineered to maintain constant tension on the engine drive belt, ensuring the efficient operation of the alternator, water pump, and other critical accessories. Designed for Caterpillar industrial and commercial engines, it provides reliable performance and prevents belt slippage under heavy loads.
Key Features & Performance
- Heavy-Duty Design: Built to withstand the high vibration and heat of Caterpillar diesel engines.
- Consistent Tension: Provides precise belt pressure to reduce wear on pulleys and components.
- Direct Fit: Manufactured to meet original equipment standards for seamless installation.
- Durable Materials: Constructed with high-strength alloy for long-term service life.
Fitment & Compatibility
- Compatible Models: Caterpillar CAT 3406E, C9, 3126, C7
- Part Number(s): 190-0642, 138-2514
Technical Specifications
- Part Type: Belt Tensioner
- Engine Series: 3406E, C9, 3126, C7
- Material: Industrial Grade Steel/Alloy
Frequently Asked Questions
- Q: Is this part a direct replacement for OEM 190-0642? A: Yes, this unit is designed to match the specifications and performance of original part numbers 190-0642 and 138-2514.
- Q: Does this tensioner include the pulley? A: Yes, this is a complete tensioner assembly including the pulley as shown in the product images.
Compatibility may vary by serial number. Verify fitment before purchase.