For a 1999 Chevrolet Blazer, the fuel pump is an in-tank module, and part prices typically range from a few dozen to a few hundred dollars, with total installed costs usually between about $300 and $800 depending on labor and the exact part chosen.
Typical price ranges for the fuel pump module
The following price ranges reflect common options for the 1999 Blazer’s in-tank fuel pump module. The price you see can vary by brand, whether the unit is new or remanufactured, and where you shop.
- Remanufactured or aftermarket pump module: typically about $60 to $150
- New aftermarket pump module: roughly $120 to $200
- OEM/brand-name (e.g., Delco) pump module: often $180 to $350
In many cases, the part alone is only part of the total bill; some shops require new sending units or additional seals, which can add to the price.
Factors that influence price and where to buy
Prices vary widely by source, the exact part included, and the vehicle’s configuration. The 1999 Blazer uses an in-tank fuel pump module with a sending unit; some listings include just the pump, while others include the whole module with the fuel gauge sender.
Where to buy and what to look for
Consider shopping at major auto parts stores, online retailers, or the dealer. Look for compatibility with the 4.3L V6 Blazer model year 1999 and verify that the pump includes the sending unit if your purchase requires it.
- Dealership or OEM-equivalent: typically higher price but guaranteed fit
- Auto parts chains (e.g., AutoZone, O'Reilly, Advance): wide range of aftermarket/reman options
- Online retailers and marketplaces: often the best price but verify the warranty and return policy
Note: If your Blazer uses a different rear floor wiring or a particular fuel gauge sender, ensure the part matches your truck’s configuration.
Installation costs and tips
Installing an in-tank fuel pump typically requires dropping the fuel tank, which is a job for a DIYer with proper safety measures or a professional mechanic. Labor costs vary by region and shop, but you can expect to pay several hundred dollars in labor in addition to the part.
DIY vs professional installation
DIY installation is possible for experienced enthusiasts with the right tools, but the risks of fuel system work are significant. If you choose to DIY, ensure to relieve fuel pressure, disconnect the battery, and follow safe containment for fuel.
- Estimated labor: about 2 to 4 hours depending on access
- Safety: work in a well-ventilated area; have a fire extinguisher handy
- Parts to consider: new sending unit seal, gasket, connecting rings if required
Prices and procedures vary; consult the service manual or a repair guide for your model year.
Summary
The 1999 Blazer fuel pump replacement cost hinges on the part choice (remanufactured vs new vs OEM) and labor. Expect part costs roughly from $60 to $350, with installed totals commonly in the $300 to $800 range depending on location and labor rates. Shop around, confirm compatibility, and consider whether you need the full fuel pump module with sending unit. Always factor in potential additional seals and labor when budgeting.


