Water Pump Impeller – Fits Yamaha, Mercury/Mariner 9.9/15 HP (Replaces 682-44352-00-00, 47-96619M) 150-300HP PROV150LDA 150 2-Stroke 1990 6G5-W0078-A1-00

PROV150LDA 150 2-Stroke 1990 6G5-W0078-A1-00 Yamaha PROV150LF 150 2-Stroke 1989 6G5-W0078-A1-00 Yamaha PROV150LG 150 2-Stroke 1988 6G5-W0078-A1-00 Yamaha PROV150LH 150 2-Stroke 1987 6G5-W0078-A1-00 Yamaha 175ETLD

but O2 sensors on 2-stroke outboards are consumable parts that degrade over time due to heat and carbon buildup

or fly off

MerCruiser Alpha One All 25-87400A2 MerCruiser Alpha One Gen II All 25-87400A2 MerCruiser Bravo I All 25-87400A2 MerCruiser Bravo II All 25-87400A2 MerCruiser Bravo III All 25-87400A2 MerCruiser R All 25-87400A2 MerCruiser MR All 25-87400A2

How often should I replace my outboard's water pump impeller

Water Pump Impeller – Fits Yamaha, Mercury/Mariner 9.9/15 HP (Replaces 682-44352-00-00, 47-96619M) 150-300HP PROV150LDA 150 2-Stroke 1990 6G5-W0078-A1-00Product Details This Water Pump Impeller with Key Fits Yamaha 9. 9 15 HP 2 4 Stroke Outboards (Replaces 682 44352 00 00) is designed for reliable performance in Yamaha 9. 9 15 HP 2 Stroke (19842008) and 9. 9 15 HP 4 Stroke (up to 2000) models. It also fits various Mercury and Mariner 9. 9 15 HP outboard motors as a direct replacement. This part is a direct replacement for Yamaha 682 44352 00 00, 682 44352 01 00, and 682 44352 02 00; Sierra 18 3074;