Recmar

IAC VALVE (REC877805T) REC877805T

Country of Origin:

China

Satisfaction rating

Aftermarket product

Product	Price	Rating	Comment
Mercury Marine 877805T Solenoid Valve Genuine OEM product	$88.95~~$110.99~~ In stock Only 2 remaining	Best	Genuine Mercury OEM solenoid valve (box marked “Origin Japan”), with the same molded codes visible in the photo—K5T48471 and 25341095—identifying the original Japanese vacuum‑solenoid supplier. This part is used by Mercury EFI 30–60 hp four‑strokes to control idle air; it’s a two‑port, 12‑V on/off valve that the engine computer pulses to meter bypass air and stabilize RPM. OEM calibration (coil resistance and internal orifice geometry) matches the ECU’s strategy, which helps prevent rough/fast idle, hunting, or the knocking/air‑leak symptoms owners report when this valve sticks or leaks. The photo shows crisp molding, corrosion‑resistant bracket, and a sealed 2‑pin plug—good markers of traceability and build quality. It’s the safest choice when you need factory‑level idle quality and durability.
Genuine Mercury OEM solenoid valve (box marked “Origin Japan”), with the same molded codes visible in the photo—K5T48471 and 25341095—identifying the original Japanese vacuum‑solenoid supplier. This part is used by Mercury EFI 30–60 hp four‑strokes to control idle air; it’s a two‑port, 12‑V on/off valve that the engine computer pulses to meter bypass air and stabilize RPM. OEM calibration (coil resistance and internal orifice geometry) matches the ECU’s strategy, which helps prevent rough/fast idle, hunting, or the knocking/air‑leak symptoms owners report when this valve sticks or leaks. The photo shows crisp molding, corrosion‑resistant bracket, and a sealed 2‑pin plug—good markers of traceability and build quality. It’s the safest choice when you need factory‑level idle quality and durability.
Suzuki Marine 18117-84380 VALVE,ISC Genuine OEM product	$173.95~~$217.78~~ Cross Ship Leaves in 3-5 days Please update to verify the current stock status. Product availability has not been checked in more than 7 days.	Best	Factory OEM parts will always have a BEST rating unless there is substantial data to prove otherwise.
Factory OEM parts will always have a BEST rating unless there is substantial data to prove otherwise.
Evinrude 5031431 IAC (Idle Air Control) Valve Genuine OEM product	$212.46~~$217.32~~ Cross Ship Leaves in 3-5 days Please update to verify the current stock status. Product availability has not been checked in more than 7 days.	Best	Factory OEM parts will always have a BEST rating unless there is substantial data to prove otherwise.
Factory OEM parts will always have a BEST rating unless there is substantial data to prove otherwise.
Recmar REC877805T IAC VALVE (REC877805T) (viewing this product) Aftermarket product	$119.55~~$132.83~~ In stock Only 2 remaining	Good	Recmar’s aftermarket cross for Mercury 877805T/Suzuki 18117‑84380 is a budget‑friendly replacement. The unit in the photo looks dimensionally close to OEM (same two hose barbs, bracket style, and connector), but it has no molded maker or part codes, so coil/orifice spec and traceability are unknown. Recmar advertises ISO‑controlled production and a multi‑year warranty, and many distributors sell it for far less than OEM, making it attractive for cost‑sensitive repairs. That said, user experiences with generic K5T‑style solenoids vary; if switching speed or flow doesn’t match OEM, EFI engines can hunt or idle high. In short: a workable value option if price matters and you accept some risk; for the most consistent idle on sensitive EFI models, the OEM part remains lower‑risk.
Recmar’s aftermarket cross for Mercury 877805T/Suzuki 18117‑84380 is a budget‑friendly replacement. The unit in the photo looks dimensionally close to OEM (same two hose barbs, bracket style, and connector), but it has no molded maker or part codes, so coil/orifice spec and traceability are unknown. Recmar advertises ISO‑controlled production and a multi‑year warranty, and many distributors sell it for far less than OEM, making it attractive for cost‑sensitive repairs. That said, user experiences with generic K5T‑style solenoids vary; if switching speed or flow doesn’t match OEM, EFI engines can hunt or idle high. In short: a workable value option if price matters and you accept some risk; for the most consistent idle on sensitive EFI models, the OEM part remains lower‑risk.

$119.55~~$132.83~~

You save 10%($13.28)

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In stock

Only 2 remaining

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30 day return policy

PartX Alternatives — This part: Good

Ratings provided by PartX™

Product	Price	Rating	Comment
Mercury Marine 877805T Solenoid Valve Genuine OEM product	$93.95~~$110.99~~ In stock Only 2 remaining	Best	Genuine Mercury OEM solenoid valve (box marked “Origin Japan”), with the same molded codes visible in the photo—K5T48471 and 25341095—identifying the original Japanese vacuum‑solenoid supplier. This part is used by Mercury EFI 30–60 hp four‑strokes to control idle air; it’s a two‑port, 12‑V on/off valve that the engine computer pulses to meter bypass air and stabilize RPM. OEM calibration (coil resistance and internal orifice geometry) matches the ECU’s strategy, which helps prevent rough/fast idle, hunting, or the knocking/air‑leak symptoms owners report when this valve sticks or leaks. The photo shows crisp molding, corrosion‑resistant bracket, and a sealed 2‑pin plug—good markers of traceability and build quality. It’s the safest choice when you need factory‑level idle quality and durability.
Genuine Mercury OEM solenoid valve (box marked “Origin Japan”), with the same molded codes visible in the photo—K5T48471 and 25341095—identifying the original Japanese vacuum‑solenoid supplier. This part is used by Mercury EFI 30–60 hp four‑strokes to control idle air; it’s a two‑port, 12‑V on/off valve that the engine computer pulses to meter bypass air and stabilize RPM. OEM calibration (coil resistance and internal orifice geometry) matches the ECU’s strategy, which helps prevent rough/fast idle, hunting, or the knocking/air‑leak symptoms owners report when this valve sticks or leaks. The photo shows crisp molding, corrosion‑resistant bracket, and a sealed 2‑pin plug—good markers of traceability and build quality. It’s the safest choice when you need factory‑level idle quality and durability.
Suzuki Marine 18117-84380 VALVE,ISC Genuine OEM product	$189.95~~$211.44~~ Cross Ship Leaves in 3-5 days Please update to verify the current stock status. Product availability has not been checked in more than 7 days.	Best	Factory OEM parts will always have a BEST rating unless there is substantial data to prove otherwise.
Factory OEM parts will always have a BEST rating unless there is substantial data to prove otherwise.
Evinrude 5031431 IAC (Idle Air Control) Valve Genuine OEM product	$196.49~~$217.32~~ Cross Ship Leaves in 3-5 days Please update to verify the current stock status. Product availability has not been checked in more than 7 days.	Best	Factory OEM parts will always have a BEST rating unless there is substantial data to prove otherwise.
Factory OEM parts will always have a BEST rating unless there is substantial data to prove otherwise.
Recmar REC877805T IAC VALVE (REC877805T) (viewing this product) Aftermarket product	$119.55~~$132.83~~ In stock Only 2 remaining	Good	Recmar’s aftermarket cross for Mercury 877805T/Suzuki 18117‑84380 is a budget‑friendly replacement. The unit in the photo looks dimensionally close to OEM (same two hose barbs, bracket style, and connector), but it has no molded maker or part codes, so coil/orifice spec and traceability are unknown. Recmar advertises ISO‑controlled production and a multi‑year warranty, and many distributors sell it for far less than OEM, making it attractive for cost‑sensitive repairs. That said, user experiences with generic K5T‑style solenoids vary; if switching speed or flow doesn’t match OEM, EFI engines can hunt or idle high. In short: a workable value option if price matters and you accept some risk; for the most consistent idle on sensitive EFI models, the OEM part remains lower‑risk.
Recmar’s aftermarket cross for Mercury 877805T/Suzuki 18117‑84380 is a budget‑friendly replacement. The unit in the photo looks dimensionally close to OEM (same two hose barbs, bracket style, and connector), but it has no molded maker or part codes, so coil/orifice spec and traceability are unknown. Recmar advertises ISO‑controlled production and a multi‑year warranty, and many distributors sell it for far less than OEM, making it attractive for cost‑sensitive repairs. That said, user experiences with generic K5T‑style solenoids vary; if switching speed or flow doesn’t match OEM, EFI engines can hunt or idle high. In short: a workable value option if price matters and you accept some risk; for the most consistent idle on sensitive EFI models, the OEM part remains lower‑risk.

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Supersession Chain

Name	SKU	Superseding SKU
IAC VALVE (REC877805T)Viewing this product	REC877805T	Current

OEM Interchange

Name	SKU	Price	Brand
VALVE,ISC	18117-84380	$189.95	Suzuki Marine

IAC VALVE (REC877805T) REC877805T

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Supersession Chain

OEM Interchange

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