Due to high demand Module Mountain is currently averaging a 3-4 week lead time on orders. Please keep this in mind when ordering.

Heated Oxygen Sensor – GM (12559850)

Refurbished sku: 12559850

$679.99

Potentially in stock at one of our affiliate partners:
ebay

Out of stock

This Heated Oxygen Sensor – GM (12559850) is a guaranteed replacement for the following vehicles that contain the matching part number 12559850:

2005 Buick Century 3.1L V6 – Gas
2005 Buick Rendezvous 3.4L V6 – Gas
2005 Chevrolet Impala 3.4L V6 – Gas
2005 Chevrolet Monte Carlo 3.4L V6 – Gas
2005 Chevrolet Venture 3.4L V6 – Gas
2005 Pontiac Aztek 3.4L V6 – Gas
2005 Pontiac Grand Am 3.4L V6 – Gas
2005 Pontiac Montana 3.4L V6 – Gas
2004 Buick Century 3.1L V6 – Gas
2004 Buick Rendezvous 3.4L V6 – Gas
2004 Cadillac DeVille 4.6L V8 – Gas
2004 Cadillac Seville 4.6L V8 – Gas
2004 Chevrolet Impala 3.4L V6 – Gas, 3.8L V6 – Gas
2004 Chevrolet Monte Carlo 3.4L V6 – Gas
2004 Chevrolet Venture 3.4L V6 – Gas
2004 Oldsmobile Alero 3.4L V6 – Gas
2004 Oldsmobile Silhouette 3.4L V6 – Gas
2004 Pontiac Aztek 3.4L V6 – Gas
2004 Pontiac Grand Am 3.4L V6 – Gas
2004 Pontiac Montana 3.4L V6 – Gas
2003 Buick Century 3.1L V6 – Gas
2003 Buick Rendezvous 3.4L V6 – Gas
2003 Cadillac DeVille 4.6L V8 – Gas
2003 Cadillac Seville 4.6L V8 – Gas
2003 Chevrolet Impala 3.4L V6 – Gas
2003 Chevrolet Malibu 3.1L V6 – Gas
2003 Chevrolet Monte Carlo 3.4L V6 – Gas
2003 Chevrolet Venture 3.4L V6 – Gas
2003 Oldsmobile Alero 3.4L V6 – Gas
2003 Oldsmobile Aurora 4.0L V8 – Gas
2003 Oldsmobile Silhouette 3.4L V6 – Gas
2003 Pontiac Aztek 3.4L V6 – Gas
2003 Pontiac Grand Am 3.4L V6 – Gas
2003 Pontiac Grand Prix 3.1L V6 – Gas
2003 Pontiac Montana 3.4L V6 – Gas
2002 Buick Century 3.1L V6 – Gas
2002 Buick Rendezvous 3.4L V6 – Gas
2002 Cadillac DeVille 4.6L V8 – Gas
2002 Cadillac Eldorado 4.6L V8 – Gas
2002 Cadillac Seville 4.6L V8 – Gas
2002 Chevrolet Blazer 4.3L V6 – Gas
2002 Chevrolet Impala 3.4L V6 – Gas
2002 Chevrolet Malibu 3.1L V6 – Gas
2002 Chevrolet Monte Carlo 3.4L V6 – Gas
2002 Chevrolet S10 4.3L V6 – Gas
2002 Chevrolet Venture 3.4L V6 – Gas
2002 GMC Sonoma 4.3L V6 – Gas
2002 Oldsmobile Alero 3.4L V6 – Gas
2002 Oldsmobile Aurora 3.5L V6 – Gas, 4.0L V8 – Gas
2002 Oldsmobile Bravada 4.2L L6 – Gas
2002 Oldsmobile Intrigue 3.5L V6 – Gas
2002 Oldsmobile Silhouette 3.4L V6 – Gas
2002 Pontiac Aztek 3.4L V6 – Gas
2002 Pontiac Grand Am 3.4L V6 – Gas
2002 Pontiac Grand Prix 3.1L V6 – Gas
2002 Pontiac Montana 3.4L V6 – Gas
2001 Buick Century 3.1L V6 – Gas
2001 Cadillac DeVille 4.6L V8 – Gas
2001 Cadillac Eldorado 4.6L V8 – Gas
2001 Cadillac Seville 4.6L V8 – Gas
2001 Chevrolet Impala 3.4L V6 – Gas
2001 Chevrolet Malibu 3.1L V6 – Gas
2001 Chevrolet Monte Carlo 3.4L V6 – Gas
2001 Chevrolet Venture 3.4L V6 – Gas
2001 Oldsmobile Alero 3.4L V6 – Gas
2001 Oldsmobile Aurora 3.5L V6 – Gas, 4.0L V8 – Gas
2001 Oldsmobile Intrigue 3.5L V6 – Gas
2001 Oldsmobile Silhouette 3.4L V6 – Gas
2001 Pontiac Aztek 3.4L V6 – Gas
2001 Pontiac Grand Am 3.4L V6 – Gas
2001 Pontiac Grand Prix 3.1L V6 – Gas
2001 Pontiac Montana 3.4L V6 – Gas
2000 Cadillac DeVille 4.6L V8 – Gas
2000 Cadillac Eldorado 4.6L V8 – Gas
2000 Cadillac Seville 4.6L V8 – Gas
2000 Oldsmobile Intrigue 3.5L V6 – Gas
1999 Oldsmobile Intrigue 3.5L V6 – Gas

Each unit is prepared and inspected by our team at Module Mountain.

Module Mountain offers free shipping on all parts within the USA including Alaska and Hawaii.

We also ship worldwide. Shipping rates to specific countries are provided at checkout.

All items come with a ONE YEAR WARRANTY.

Warranty does not include any labor associated with installation and/or removal of parts, key and/or Locksmith fees. Buyer will not be reimbursed for any such fees–NO EXCEPTIONS. Buyer hereby acknowledges and agrees that the Seller’s liability is limited to the price of the item sold and the Seller is not liable for any damage and/or injury sustained that results from any item(s) sold by any entity operated by Module Mountain and Buyer hereby now and forever relinquishes Seller from any such liability.

The one year warranty shall be void if an item is returned with any signs of:

  • Burnt Components
  • Physical and/or Water Damage
  • Misuse and/or Abuse
  • Modifications, Opened, Tampered with, and/or used for any purpose not originally intended
  • Vehicle is involved in a collision
  • Security Seal is removed, broken and/or damaged

After one claim, the warranty is exhausted.

Buyer hereby understands, acknowledges, agrees and accepts all of the terms set forth herein upon purchase and that the terms set forth herein shall be controlling.


RETURNS AND EXCHANGES: Module Mountain refurbishes items to order and due to labor involved in each order DOES NOT ACCEPT RETURNS FOR MONEY BACK. However, exchanges are available for 30 days from date of receipt of item per delivered date on shipment tracking information. Exchanges will be processed in the order received and may have a greater handling time than order processing. All requests for exchange must be received by Seller within 30 days from the date of receipt of item—NO EXCEPTIONS. NO exchange shall be issued until receipt of return.

CONDITION: Exchanges must be in original condition. Electrical parts are tested prior to purchase and if returned, all units will be inspected for burnt components, physical damage and water damage. Seller expressly reserves the right to require a Buyer to return an alleged faulty/defective unit to Seller at the Buyer’s expense for testing prior to replacement.

AUTHORIZATION: Exchanges must be accompanied by a Return Merchandise Authorization (RMA.) Unauthorized exchanges will not be processed and will be held for no more than 45 days after receipt. After 45 days, if an unauthorized exchange is not claimed or accompanied by an RMA, Seller reserves the right to maintain possession of the unclaimed/unauthorized exchange.

FEES: All items are OEM/Refurbished and Seller will NOT reimburse any fees a Buyer expends in connection with a possible faulty/defective unit(s) including, but not limited to Locksmith fees, diagnostic fees, rental car fees, storage fees, dealership fees, third party reprogramming fees, etc.

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