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LOSTAR Heavy Duty (603-5403) Coolant Overflow Reservoir Bottle Tank Fit for 2008-2017 Kenworth Peterbilt Truck T680 T600 T800 W900 389 348 367 377 378 382 384 385 386 388 389
✅ In stock
⭐ Lowest price we've tracked
📉 Price recently dropped
A
Grade
Analysis Confidence
100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 19, 2026 3:44 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
🔥 Great Deal- 🔥Verdict: Great Deal. Strong buy. Price is significantly below its historical average.
- 💰The current price is 20% below what this product typically costs — a notable saving over its usual going rate.
- 🏷️The listed retail price is trimmed by 10% at checkout.
- 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
- 📈The direction is downward at the moment; if that holds, an even better price may surface — though timing the market is never certain.
How We Scored This Deal
Price Competitiveness
22.72/28
Recent Value
7.38/22
Market Standing
19.57/20
Deal Strength
20/20
Momentum
10/10
📝 Product Overview
🏪 Sold by
Lone Star Auto Parts
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓Fit for 2008 - 2017 Kenworth Peterbilt trucks
✓Models: T660 T800 T880 W900 335 337 340 348 349 352 353 357 359 362 365 367 372 375 376 377 378 379 384 385 386 387 388 389
✓Fits models with Cummins or CAT engines only
✓Brand New Radiator Overflow Bottle Includes Cap Replaces dealer part number: N5346001 Plastic construction
✓Direct replacement Built to strict quality control standards
⚙️ Specifications
Brand
LOSTAR
Material
Plastic
Exterior Finish
Plastic
Vehicle Service Type
Truck
Fuel Type
Diesel
Product Grade
Replacement Part
Fit Type
Vehicle Specific
OEM Part Number
2008 2009 2010 2011 2012 2013 2014 2015 2016 330 335 337 340 348, 357 362 365 367 382 384 386 387 388 389 T660 T800 T880 W900, Kenworth Peterbilt 603-5403 N5346001, Radiator Overflow Bottle with Cap Front
UPC
731628435195 738712246330
Automotive Fit Type
Vehicle Specific Fit
Manufacturer
LOSTAR
