1988 - 1991 Mercury 20" Lower Unit 135 150 175 200 HP 1.78:1 XR4 Mag2 1 YEAR WTY

 
$3,700.00
International Shipping Quote
  • Brand: Mercury
  • Size: 135 150 175 200 HP
  • Style: 1.78-1 - 20" - V6 - 2 Stroke
  • Condition: Re-manufactured
  • Notes: Fully Resealed & Pressure Checked With New Impeller!
  • SKU: 59597 LRU
  • Manufacturer Part Number: 814247T4 814247A4 9572A4
  • Country of Manufacture: United States
  • Motor & Engine Type: Mercury
  • Part Type: Motors, Engines & Components
  • Other Part Number: N/A
  • Inventory Number: 59597 LRU
  • Website Category: Lower Units
  • Website Sub Category: Complete Lower Units
  • UPC: N/A
  • Shipping: $175.00

Mercury 20" Lower Unit 1.78:1 XR4 Mag2

Mercury 20" 1.78:1 XR4 Mag2 lower unit for 1988–1991 outboards, 135 150 175 200 HP. Inspected, serviced, and tested for proper function. Gears are replaced only if bad — good OEM gears are retained.

SPECS

Gear ratio: 1.87:1Driveshaft length: 21-1/4″
Driveshaft splines: 8Prop shaft splines: 15

Driveshaft length measured from the top of the water pump.

WHAT WE DID

Opened and inspected under magnification
Fully resealed
Pressure checked to 12 PSI
New water pump impeller installed
IMPORTANT: Gear oil is NOT included. Oil must be added prior to use.

FITMENT

Mercury 20"

Years1988–1991
Shaft20"
Horsepower135 150 175 200 HP

Verify by model and serial number before purchase to confirm this is the correct unit for your application.

1Year Working Warranty

Backed by Southcentral Outboards. Failures during normal use within the warranty period will be repaired or replaced.

DISCLAIMER

Listing info accurate to the best of our knowledge but not guaranteed. Fitment is the buyer’s responsibility — verify by model and serial before purchase.

SOUTHCENTRAL OUTBOARDS  ·  ALTAMONT, IL

1988 - 1991 Mercury 20" Lower Unit 135 150 175 200 HP 1.78:1 XR4 Mag2 1 YEAR WTY
1988 - 1991 Mercury 20" Lower Unit 135 150 175 200 HP 1.78:1 XR4 Mag2 1 YEAR WTY1988 - 1991 Mercury 20" Lower Unit 135 150 175 200 HP 1.78:1 XR4 Mag2 1 YEAR WTY1988 - 1991 Mercury 20" Lower Unit 135 150 175 200 HP 1.78:1 XR4 Mag2 1 YEAR WTY1988 - 1991 Mercury 20" Lower Unit 135 150 175 200 HP 1.78:1 XR4 Mag2 1 YEAR WTY1988 - 1991 Mercury 20" Lower Unit 135 150 175 200 HP 1.78:1 XR4 Mag2 1 YEAR WTY1988 - 1991 Mercury 20" Lower Unit 135 150 175 200 HP 1.78:1 XR4 Mag2 1 YEAR WTY1988 - 1991 Mercury 20" Lower Unit 135 150 175 200 HP 1.78:1 XR4 Mag2 1 YEAR WTY1988 - 1991 Mercury 20" Lower Unit 135 150 175 200 HP 1.78:1 XR4 Mag2 1 YEAR WTY1988 - 1991 Mercury 20" Lower Unit 135 150 175 200 HP 1.78:1 XR4 Mag2 1 YEAR WTY1988 - 1991 Mercury 20" Lower Unit 135 150 175 200 HP 1.78:1 XR4 Mag2 1 YEAR WTY1988 - 1991 Mercury 20" Lower Unit 135 150 175 200 HP 1.78:1 XR4 Mag2 1 YEAR WTY