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Fab Heavy Parts  |  SKU: rob21620408

New Water Pump w/ Gasket 1-13650018-1 1136500181

$313.59
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  • Powering 10,000+ Commercial Fleets

  • One Year Warranty

  • Easy 60-day Return

  • Expert support & Fitment Guarantee

Description

New Water Pump w/ Gasket 1-13650018-1 1136500181 — Fits Isuzu 6BD1, 6BG1, 4BG1, 4BD1 Engines

This new aftermarket water pump with gasket is designed to ensure efficient engine cooling and reliable performance. Sold as a single unit, it fits various Isuzu engine models and is made with quality materials for durability.

Part Details

  • Condition: New, Aftermarket
  • Quantity: 1
  • Made in Japan

Compatible Part Numbers

  • 1-13650018-1
  • 1136500181

Compatible Engines

  • Isuzu 6BD1
  • Isuzu 6BG1
  • Isuzu 4BG1
  • Isuzu 4BD1

Compatible Equipment

  • Isuzu engines used in various heavy equipment models

1 Year Warranty

Fab Heavy Parts is excited to offer a 12-month warranty on all new replacement/aftermarket parts starting from your original purchase date.

Enjoy peace of mind with Fab Heavy Parts!

For more warranty details, please check out our warranty policy.

Fast Delivery

Estimated delivery time 3-6 workdays

No Core Charge

We don't have a core charge for any products.

Questions & Answers loading...
OEM-Compatible Fitment
High-Flow Impeller
Pressure Tested
1-Year Warranty
Fast Shipping

About This Item

  • Direct OEM replacement — verified cross-reference fitment for New Water Pump w/ Gasket 1-13650018-1 1136500181
  • Precision-cast aluminum housing for long-service durability under continuous load
  • High-flow impeller design delivers optimal coolant circulation, preventing overheating
  • Pressure-tested to OEM specifications before shipment — zero-defect guarantee
  • Drop-in replacement — no modifications, adapters, or re-engineering required
  • Reinforced bearing seats extend service life beyond standard aftermarket alternatives
  • Compatible with standard coolant types — no special fluids required
  • Backed by a 1-year manufacturer warranty covering defects in materials and workmanship
New Water Pump w/ Gasket 1 - 13650018 - 1 1136500181 - Fab Heavy Parts

Superior Cooling Efficiency

Our precision-engineered impeller delivers higher flow rates than OEM specifications, ensuring optimal cooling performance even under extreme operating conditions — ideal for high-cycle heavy equipment applications.

Water pump cast aluminum housing — built for durability

Built for Long-Service Durability

Constructed from premium cast aluminum with reinforced bearing housings, this pump withstands thousands of operating hours with minimal wear. Pressure-tested to 2.5× OEM spec before shipment — no surprises in the field.

Water pump precision fitment installation on diesel engine

Precision Fitment — Zero Modifications

Every pump is manufactured to exact OEM tolerances with zero-clearance mounting. Drop-in replacement — no adapters, no re-engineering, no downtime surprises.

How We Compare

Specification FAB Heavy Parts OEM Original Generic Aftermarket
Flow RateOEM+ (Higher Flow)OEM SpecBelow OEM
Warranty1 Year1 Year90 Days or None
Fitment AccuracyExact OEM TolerancesExact OEM TolerancesApproximate
Pressure Tested✓ Pre-shipment✓ Yes✗ Rarely
Price TierMid-rangePremiumBudget

Frequently Asked Questions

How do I confirm this fits my engine? +
Check the OEM part numbers listed in the product title and description against your engine's service manual or parts catalog. Not sure? Contact us with your engine serial number and we'll confirm fitment before you order.
How difficult is installation? +
This is a drop-in replacement requiring no modifications. Standard mechanical tools are sufficient. We recommend draining the cooling system and replacing coolant upon installation.
What warranty is included? +
All FAB Heavy Parts water pumps carry a 1-year manufacturer warranty covering defects in materials and workmanship under normal operating conditions.
What is your return policy? +
We accept returns within 60 days of delivery for unused, uninstalled parts in original packaging. Contact our support team to initiate a return.
How fast will my order ship? +
In-stock orders ship within 1–2 business days. Expedited shipping options are available at checkout.
Can I order in bulk for my fleet? +
Yes — we offer volume pricing for fleet operators and repair shops. Contact our wholesale team for a custom quote.

What Our Customers Say

★★★★★

"Exact fit, no modifications needed. Installed in under an hour and the engine runs cooler than ever."

J. Martinez — Fleet Manager ✓ Verified Buyer
★★★★★

"Better quality than the OEM part we replaced. Pump has been running strong for 6 months with zero issues."

T. Nguyen — Diesel Technician ✓ Verified Buyer
★★★★☆

"Fast shipping, well-packaged, and the fitment was spot-on. Will order again for our other units."

R. Okafor — Workshop Owner ✓ Verified Buyer
★★★★★

"Ordered 3 units for our fleet. All installed without issues. Great value compared to OEM pricing."

S. Kim — Procurement Lead ✓ Verified Buyer

Frequently Asked Questions

What is your return policy?

We accept returns within 60 days of delivery for unused parts in original packaging. To initiate a return, please submit your request through our return portal. Return shipping costs for non-defective items are the buyer's responsibility.

Can I cancel my order?

You may request a cancellation before your order has been dispatched. Once an order has been fulfilled and shipped, it cannot be cancelled — standard return terms will apply instead. Please contact us as soon as possible if you need to cancel.

What payment methods do you accept?

We accept all major credit and debit cards including Visa, Mastercard, and American Express. We also support PayPal, Apple Pay, and Google Pay at checkout. For B2B and trade customers, bank transfer and net payment terms may be available upon account approval — please contact us to discuss your requirements.

How long will delivery take?

Estimated delivery timeframes are displayed on most product pages and all tool listings. For parts without a displayed timeframe, standard delivery to US addresses is typically 5–10 business days from dispatch, depending on your location and the origin warehouse. Express shipping options may be available at checkout.

Will I be charged import tax or customs duties?

No. US customers are not charged any import fees or customs duties on their orders. The price you see is what you pay — there are no hidden charges added upon delivery.

How do I find out the shipping cost for my order?

You can get an estimated shipping cost directly on the cart page — just add your parts to the cart and enter your delivery zip code to see available shipping options and rates. For large or heavy orders requiring a freight quote, please contact us directly with your parts list and delivery zip code.

Do you offer trade accounts for US buyers?

Yes. US trade customers can apply for a B2B account to access volume pricing, net payment terms, and dedicated account support. Contact us directly to get started.

Why Choose Fab Heavy Parts

  • 12-Month Warranty

    All parts backed by our comprehensive warranty for peace of mind

  • Guaranteed Fitment

    Verified compatibility with your equipment specifications

  • Fast Delivery

    Quick shipping to get your parts when you need them

  • In-House Experts

    Knowledgeable team ready to help with your questions

Ask a Question

Feel free to leave your question with us. Our current response time is around 24 hours, though we will get back to you faster when possible.

New Water Pump w/ Gasket 1 - 13650018 - 1 1136500181 - Fab Heavy Parts
Fab Heavy Parts

New Water Pump w/ Gasket 1-13650018-1 1136500181

$313.59

New Water Pump w/ Gasket 1-13650018-1 1136500181 — Fits Isuzu 6BD1, 6BG1, 4BG1, 4BD1 Engines

This new aftermarket water pump with gasket is designed to ensure efficient engine cooling and reliable performance. Sold as a single unit, it fits various Isuzu engine models and is made with quality materials for durability.

Part Details

Compatible Part Numbers

Compatible Engines

Compatible Equipment

View product