Volvo Penta 5.7L V8 4-Stroke Marine Engine Parts

(1 products)

This page is for Volvo Penta 5.7L V8 4‑Stroke marine engines. Use it to find compatible parts and service information for popular carbureted, TBI, and EFI variants. You’ll find maintenance tips, common replacement parts, and troubleshooting guidance below. You can also browse the main Volvo Penta collection. Scroll to the bottom of this page to start browsing parts for this engine, and on the collection page use the Filter & Sort controls to narrow results by application, year range, and part category.

Browse All Volvo Penta Parts

How to Identify Your 5.7L Model

Locate the engine identification/serial plate on or near the intake manifold, starboard valve cover, or flywheel housing. The sterndrive (SX/DP) serial is typically on the transom shield or the upper gear housing.
Model designation examples include 5.7GL/GS (carb), 5.7Gi (EFI), and 5.7GXi (high‑output EFI). Suffix letters often indicate fuel system, output level, and market year.
Fuel system type: Carb/TBI engines have a carburetor or a single throttle‑body unit; EFI models have a fuel rail with individual injectors and an ECM.
Cooling style: Raw‑water systems draw seawater directly; closed‑cooling systems use a heat exchanger. Thermostat ratings commonly differ by system—verify in your manual.

Engine Platform Overview

5.7L V8 (Carbureted / TBI)

Feature	Description
Configuration	90° V8 pushrod 4‑stroke; carburetor or throttle‑body injection; raw‑ or closed‑cooling variants.
Common Models	5.7GL/GS and early 5.7Gi (TBI) paired with SX or DuoProp drives.
Advantages	Proven, simple systems; strong mid‑range torque; straightforward field service.
Notes	Confirm exhaust hardware (Volvo VR1 vs VR2 manifold/risers) and cooling layout before ordering. Typical thermostats differ by cooling system. Fuel delivery can be mechanical or electric depending on year.

5.7L V8 (EFI / MEFI Multi‑Port)

Feature	Description
Configuration	90° V8 pushrod 4‑stroke; multi‑port fuel injection with ECM control; electric low/high‑pressure fuel pumps.
Common Models	5.7Gi and 5.7GXi EFI variants across late‑1990s and 2000s installations.
Advantages	Improved cold start and economy; better altitude/temperature compensation; diagnostic capability.
Notes	Match sensors (MAP, ECT, knock), injectors, and ECM generation to your model year. Verify high‑pressure fuel pump and fuel rail style. Exhaust (VR1/VR2) and cooling configuration still apply.

Routine Maintenance & Service Parts

Intervals below are general guidelines for typical recreational use. Always follow the official Volvo Penta service schedule in your owner’s manual.

Item	Interval*	Remarks	Parts Link
Engine oil & filter	100 hours or annually	Use marine‑rated oil per manual; warm engine before draining for best results.	Volvo Penta Service Kits
Gear oil (sterndrive)	100 hours or annually	Check for water (milky oil) or metal on magnet; pressure test if contamination is found.	Volvo Penta Service Kits
Spark plugs	100 hours or annually	Inspect gap and deposits; replace as needed for consistent idle and starts.	Spark Plug Collection
Fuel filter / water separator	100 hours or annually	Replace spin‑on canister; EFI models may also have an inline high‑pressure filter.	Volvo Penta Fuel Filters
Raw‑water pump impeller	100 hours or every 1–2 seasons	Replace sooner in sandy/silty water or if overheat/weak stream occurs.	Volvo Penta Impellers
Anodes (zinc/aluminum/magnesium)	Inspect monthly; replace when 50–70% consumed	Match alloy to water type (salt/brackish/fresh) for best protection.	Volvo Penta Anodes
Belts (alternator/PS)	Inspect every 50 hours	Check tension and cracking; replace if glazed or noisy.	Belts
Thermostat (as equipped)	2–3 seasons or as needed	Typical ratings ~160°F (closed cooling) or ~142°F (raw water); verify for your engine.	Volvo Penta Collection

*Follow the more conservative interval if operating in heavy use, trolling, or harsh environments.

Frequently Used Parts Categories

Routine Service Kits – Volvo Penta Service & Maintenance Kits
Cooling System (Pumps & Impellers) – Volvo Penta Water Pumps
Fuel System – Volvo Penta Fuel Filters
Ignition / Starting – Volvo Penta Starters
Charging / Alternators – Volvo Penta Alternators
Exhaust Manifolds & Risers – Volvo Penta Manifolds
Corrosion Protection – Volvo Penta Anodes

Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
Weak water stream or overheat alarm	Raw‑water intake blocked, worn impeller, collapsed hoses, stuck thermostat, restricted risers/elbows.	Impeller kit, raw‑water pump, thermostat, hoses, manifold/risers, anodes.
Hard starting / rough idle	Battery voltage, stale fuel, water in separator, fouled plugs, idle air control (EFI), vacuum leaks.	Fuel filter, spark plugs, ignition components, IAC (EFI), intake gaskets/hoses.
Poor acceleration / power loss	Fouled prop, restricted fuel filter, low fuel pressure (EFI), deteriorated plug wires, clogged flame arrestor, exhaust restriction.	Propeller, fuel filters/pumps, spark plugs/wires, flame arrestor, manifolds/risers.
Gearcase noise or metal in gear oil	Low/contaminated gear lube, leaking propshaft or driveshaft seals, misaligned u‑joints, water intrusion.	Service kit, lower unit seal kit, prop hardware, bearings (professional inspection recommended).

FAQs

Are parts interchangeable between different 5.7L years and variants?

Many items carry over across 5.7L V8 generations, but compatibility depends on fuel system (carb/TBI vs EFI), exhaust style (VR1 vs VR2), cooling layout (raw vs closed), and your sterndrive model. Always confirm by engine/drive serial and model designation before ordering.

When should I replace the raw‑water impeller?

As a rule of thumb, every 100 hours or at least once per season. Replace sooner if operating in sandy/silty water, if the pump ran dry, or if you notice overheat warnings or a weak discharge stream.

How often should I change sterndrive gear oil?

At least annually or every 100 hours. Inspect mid‑season if you run high hours or notice shifting noise. Milky oil indicates water intrusion and warrants a seal check and pressure test.

What information do you need to confirm part compatibility?

Provide the engine model/serial, sterndrive model/serial, fuel system type (carb/TBI/EFI), cooling style (raw/closed), and clear photos of the nameplate and the part you’re replacing.

Ready to find parts? Browse the main Volvo Penta collection by model and year, then use Filter & Sort to narrow to the exact components for your 5.7L V8.

Shop Volvo Penta Collection

If you’re unsure about your model, send us a photo of the nameplate and the part you need and we’ll help verify compatibility.