Real-world 2026 field data on diesel fuel injector failure patterns, hidden failure modes, and OEM vs aftermarket cost comparison for repair shops and fleet operators.
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✅ Compatibility
- Make: Mercury MerCruiser
- OEM Part Numbers: 86234A05, 86234A4, 86234A3, 86234
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Fits MerCruiser Inboard Engines:
- 140 (GM 3.0L / 181 cid Inline-4): 1968–1989 — Serial 2508261 to 0C856558
- 160 (GM 4.1L / 250 cid Inline-6): 1967–1969 — Serial 2048022 to 2770031
- 165 (GM 4.1L / 250 cid Inline-6): 1970–1981 — Serial 2770032 to 5813433
- 200 (GM 4.1L / 250 cid Inline-6): 1969 — Serial 2453769 to 2712072
- 470 (Merc 3.7L / 224 cid Inline-4): 1976–1984 — Serial 4208730 to 6916778
- 485 (Merc 3.7L / 224 cid Inline-4): 1980–1982 — Serial 5685394 to 6218036
- 488 (Merc 3.7L / 224 cid Inline-4): 1983–1984 — Serial 6170297 to 6916778
🔑 Key Specs
- Part Numbers: 86234A05, 86234A4, 86234A3, 86234
- Pump Type: Mechanical fuel pump (marine inboard) — draws fuel from the tank and delivers it to the carburetor; failure causes hard starting, fuel starvation, engine stalling, and loss of power on MerCruiser 140/160/165/200/470/485/488 inboard applications
- Compatible Engines: MerCruiser 140/160/165/200 (GM 3.0L/4.1L) / 470/485/488 (Merc 3.7L)
- Application Years: 1967–1989
- Condition: New Aftermarket
- SKU: 86234A05
📦 What's Included
- 1× Mechanical Fuel Pump (86234A05) — New Aftermarket
- Mounting Gaskets (included)
🔧 Product Highlights
- Mechanical fuel pump with mounting gaskets included (86234A05 / 86234A4 / 86234A3 / 86234) — direct drop-in OEM replacement covering both GM-based (3.0L/4.1L) and Merc-based (3.7L) MerCruiser inboard engines across 7 models (140/160/165/200/470/485/488) from 1967–1989.
- High quality at a competitive price — restores reliable fuel delivery to the carburetor and eliminates hard starting, fuel starvation, engine stalling, and loss of power on MerCruiser inboard marine applications.
⚠️ Verify existing fuel pump part number before purchasing. If you are unsure, feel free to ask us — we will be happy to confirm fitment for you.
Fuel Parts Depot
Fuel Pump with Gaskets 86234A05 86234A4 for Mercury MerCruiser 140 165 200 470 485 488 Inboard Engine
SKU
86234a05
- Regular price
- $68.82
- Regular price
- $68.82
✅ Compatibility
- Make: Mercury MerCruiser
- OEM Part Numbers: 86234A05, 86234A4, 86234A3, 86234
-
Fits MerCruiser Inboard Engines:
- 140 (GM 3.0L / 181 cid Inline-4): 1968–1989 — Serial 2508261 to 0C856558
- 160 (GM 4.1L / 250 cid Inline-6): 1967–1969 — Serial 2048022 to 2770031
- 165 (GM 4.1L / 250 cid Inline-6): 1970–1981 — Serial 2770032 to 5813433
- 200 (GM 4.1L / 250 cid Inline-6): 1969 — Serial 2453769 to 2712072
- 470 (Merc 3.7L / 224 cid Inline-4): 1976–1984 — Serial 4208730 to 6916778
- 485 (Merc 3.7L / 224 cid Inline-4): 1980–1982 — Serial 5685394 to 6218036
- 488 (Merc 3.7L / 224 cid Inline-4): 1983–1984 — Serial 6170297 to 6916778
🔑 Key Specs
- Part Numbers: 86234A05, 86234A4, 86234A3, 86234
- Pump Type: Mechanical fuel pump (marine inboard) — draws fuel from the tank and delivers it to the carburetor; failure causes hard starting, fuel starvation, engine stalling, and loss of power on MerCruiser 140/160/165/200/470/485/488 inboard applications
- Compatible Engines: MerCruiser 140/160/165/200 (GM 3.0L/4.1L) / 470/485/488 (Merc 3.7L)
- Application Years: 1967–1989
- Condition: New Aftermarket
- SKU: 86234A05
📦 What's Included
- 1× Mechanical Fuel Pump (86234A05) — New Aftermarket
- Mounting Gaskets (included)
🔧 Product Highlights
- Mechanical fuel pump with mounting gaskets included (86234A05 / 86234A4 / 86234A3 / 86234) — direct drop-in OEM replacement covering both GM-based (3.0L/4.1L) and Merc-based (3.7L) MerCruiser inboard engines across 7 models (140/160/165/200/470/485/488) from 1967–1989.
- High quality at a competitive price — restores reliable fuel delivery to the carburetor and eliminates hard starting, fuel starvation, engine stalling, and loss of power on MerCruiser inboard marine applications.
⚠️ Verify existing fuel pump part number before purchasing. If you are unsure, feel free to ask us — we will be happy to confirm fitment for you.
We offer 12-month warranty against defects in materials or workmanship.
All parts listed on Fuel Parts Depot are aftermarket replacement parts manufactured by independent suppliers. They are not genuine OEM (Original Equipment Manufacturer) parts and are not made by, affiliated with, or endorsed by the original equipment manufacturers, including but not limited to Perkins, Isuzu, Kubota, Yanmar, Caterpillar (CAT), Cummins, JCB, or any other brand referenced on this site. Brand names and model references are used solely for compatibility identification purposes. Our aftermarket parts are designed and tested to meet or exceed OEM specifications.
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Fuel Pump Module Assembly 2521307 220812 For Polaris Ranger 900 1000 XP Crew
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Fitment Information
Compatibility
| Year | Make | Model | Engine |
|---|---|---|---|
| 1967-1989 | Mercury MerCruiser | MerCruiser 140, 160, 165, 200, 470, 485, 488 Inboard | GM 3.0L (181 cid) Inline-4 / GM 4.1L (250 cid) Inline-6 / Merc 3.7L (224 cid) Inline-4 |
Part Numbers
86234A05, 86234A4, 86234A3, 86234
Features
- New Aftermarket
- Direct Fit No Modification
- Consistent Fuel Delivery
- Ready for Installation
Our Guarantee
12 Month Warranty
30-Day Returns
Fitment Guaranteed
What's Included
1x Mechanical Fuel Pump (86234A05) + Mounting Gaskets
C
I purchased this pump for a customer's 1994 Four Winns boat. The engine was a Mercruiser 153cid 2.5l inline-four. The original pump would stop pumping when it got hot, but would start pumping again when it cooled off. I installed this new pump, and the boat runs like new again. Note I had to reuse all of the fittings from the original pump, but that only took a few minutes to swap. The price of this pump was significantly less expensive that anywhere else I searched online. I really appreciate Fuel Parts Depot for having this pump in stock, and I look forward to doing business with them in the future.
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