Quicksilver 865996A01 Exhaust Riser Extension Kit 1.7"

Model # 21173323 Mfg # 865996A01
4.7 out of 5 Customer Rating
Orders placed by 3 PM EST typically ship the same day. Orders placed after this time will be processed the next business day.
Quicksilver 865996A01 Exhaust Riser Extension Kit 1.7" image number 0
Quicksilver 865996A01 Exhaust Riser Extension Kit 1.7" image number 1
Quicksilver 865996A01 Exhaust Riser Extension Kit 1.7"
Model # 21173323 Mfg # 865996A01
4.7 out of 5 Customer Rating
Orders placed by 3 PM EST typically ship the same day. Orders placed after this time will be processed the next business day.
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Quicksilver Exhaust Riser Extension Kit 1.7"

The Quicksilver 865996A01 is a genuine OEM exhaust riser extension kit engineered to provide 1.7 inches (43 mm) of additional riser height for MerCruiser engines equipped with closed cooling systems and dry joint exhaust manifolds. Sourced directly from Mercury Marine, this part ensures proper fit, performance, and durability compared to aftermarket alternatives.

This kit is compatible with a broad range of MerCruiser sterndrive and inboard applications spanning model years 2004 through 2016. Eligible engines include V-6 and V-8 sterndrive units displacing 305, 350, and 377 cubic inches (non-EC) with serial numbers 0W310000 and above, as well as inboard V-8 engines displacing 350 and 377 cubic inches (non-EC) with serial numbers 0M390000 and above. Always verify fitment against your specific engine serial number before placing an order, as photos and descriptions may not account for all production variations.

The kit includes all necessary gaskets for a complete installation: two restrictor gaskets and two full flow gaskets are provided in the box. Its compact shipping dimensions (12.00" L × 7.25" W × 7.25" H) and weight of approximately 15.56 lbs make it straightforward to handle and install.

Backed by Mercury Marine's one-year factory warranty against defects and workmanship, this riser extension kit is the recommended solution for raising exhaust elbow height on compatible closed-cooling MerCruiser engines.

Key Features

  • 1.7 in. (43 mm) exhaust riser extension height
  • Designed for closed cooling and dry joint exhaust manifolds
  • Fits 2004–2016 sterndrive V-6 & V-8 (305, 350 & 377 cid) non-EC engines, serial numbers 0W310000 and up
  • Fits inboard V-8 (350 & 377 cid) non-EC engines, serial numbers 0M390000 and up
  • Includes 2 restrictor gaskets and 2 full flow gaskets
  • Genuine OEM Mercury Marine factory part
  • 1-year Mercury Marine factory warranty against defects and workmanship
  • Shipping weight: 15.56 lbs; dimensions: 12.00" × 7.25" × 7.25"

Compatibility 2004-2016 MerCruiser sterndrive V-6 and V-8 (305, 350, 377 cid) , 2004-2016 MerCruiser inboard V-8 (350, 377 cid)
Quantity Included Includes 2 restrictor gaskets and 2 full flow gaskets
Type Exhaust Extension Kit
Warranty Mercury Marine 1 year factory warranty against defects and workmanship

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