Standard Ignition PVS91 Ported Vacuum Switch

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Standard Ignition PVS91 Ported Vacuum Switch

Brand	Standard Ignition PVS91
Contents	Ported Vacuum Switch
Thread Size - NPT	3/8" - 18 Thread
Fits	Nissan · 52 vehicles

Ported vacuum switch. Controls vacuum flow with a simple two-connector design.

3/8"-18 NPT thread. Provides a secure threaded connection for installation.

Cross-references OSC 13401, Standard Ignition PVS91 and 2-29055 for the same application. See all 13.

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Ported Vacuum Switch for Nissan Applications

Standard Ignition PVS91 is a ported vacuum switch built for Nissan vehicles that use a 2-port vacuum control layout. It features a 3/8"-18 NPT thread size and two hose connectors for direct replacement in the listed applications.

Key Features

Ported vacuum switch for engine vacuum routing and control
2 hose connectors for 2-port configurations
3/8"-18 NPT thread size
Standard Ignition PVS91 replacement part number
Cross-references OSC 13401 for the same application

Detailed Description

The Standard Ignition PVS91 is a replacement ported vacuum switch used in Nissan vacuum control systems where a 2-port design is specified. It is listed for a wide range of Nissan models, including 1977-1987 Nissan 200SX, 1978-1987 Nissan 510, 1980-1985 Nissan 720, 1983-1987 Nissan Sentra, 1984-1987 Nissan 300ZX, 1985-1987 Nissan Maxima, 1986-1987 Nissan D21, 1986 Nissan Pulsar NX, and 1987 Nissan Pathfinder. The PVS91 also appears in interchange listings under several OE and aftermarket part numbers.

This part cross-references OSC 13401 for the same application.

What It Is Used For

Restoring vacuum signal routing in Nissan emission and engine control systems
Replacing a cracked, leaking, or stuck vacuum switch
Addressing rough idle caused by incorrect vacuum switching
Correcting vacuum-related drivability concerns on 2-port systems
Replacing a failed switch on listed Nissan 200SX, 510, and Sentra applications

Installation Notes and Tips

Verify the thread size, hose connector count, and port layout before installation. Confirm the vehicle’s original vacuum switch configuration matches the listed 2-port fitment, including neutral or natural fitment notes where shown. Use the vehicle year and model details to match the correct Nissan application before removing the original part.

Quality Assurance

Standard Ignition supplies replacement electrical and engine control components for service applications. PVS91 is cataloged to match the specified Nissan fitments and interchange references for direct part lookup.

This part fits 52 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Liters	Cylinders	Position	Notes
1987	Nissan	200SX	3.0L	V6	N/A	2-Port natural fitment.
1987	Nissan	200SX	3.0L	V6	N/A	Neutral; 2 Ports
1987	Nissan	300ZX	3.0L	V6	N/A	—
1987	Nissan	D21	3.0L	V6	N/A	2-Port natural fitment.
1987	Nissan	D21	2.4L	L4	N/A	2-Port natural fitment.
1987	Nissan	Maxima	3.0L	V6	N/A	—
1987	Nissan	Pathfinder	3.0L	V6	N/A	2-Port natural fitment.
1987	Nissan	Pathfinder	3.0L	V6	N/A	Neutral; 2 Ports
1987	Nissan	Sentra	1.6L	L4	N/A	2-Port natural fitment.
1986	Nissan	200SX	1.8L	L4	N/A	2-Port natural fitment.
1986	Nissan	200SX	2.0L	L4	N/A	2-Port natural fitment.
1986	Nissan	300ZX	3.0L	V6	N/A	—
1986	Nissan	D21	2.4L	L4	N/A	2-Port natural fitment.
1986	Nissan	D21	3.0L	V6	N/A	2-Port natural fitment.
1986	Nissan	Maxima	3.0L	V6	N/A	—
1986	Nissan	Pulsar NX	—	—	N/A	2-Port natural fitment.
1986	Nissan	Sentra	—	—	N/A	2-Port natural fitment.
1985	Nissan	200SX	1.8L	L4	N/A	2-Port natural fitment.
1985	Nissan	200SX	2.0L	L4	N/A	2-Port natural fitment.
1985	Nissan	300ZX	3.0L	V6	N/A	—
1985	Nissan	720	2.4L	L4	N/A	2-Port natural fitment.
1985	Nissan	720	2.5L	L4	N/A	2-Port natural fitment.
1985	Nissan	720	2.0L	L4	N/A	2-Port natural fitment.
1985	Nissan	Maxima	3.0L	V6	N/A	—
1985	Nissan	Sentra	1.6L	L4	N/A	2-Port natural fitment.
1984	Nissan	200SX	1.8L	L4	N/A	2-Port natural fitment.
1984	Nissan	200SX	2.0L	L4	N/A	2-Port natural fitment.
1984	Nissan	300ZX	3.0L	V6	N/A	—
1984	Nissan	720	2.4L	L4	N/A	2-Port natural fitment.
1984	Nissan	720	2.5L	L4	N/A	2-Port natural fitment.
1984	Nissan	Sentra	1.6L	L4	N/A	2-Port natural fitment.
1983	Nissan	720	2.4L	L4	N/A	2-Port natural fitment.
1983	Nissan	720	2.5L	L4	N/A	2-Port natural fitment.
1983	Nissan	720	2.2L	L4	N/A	2-Port natural fitment.
1983	Nissan	Sentra	1.6L	L4	N/A	2-Port natural fitment.
1983	Nissan	Sentra	1.5L	L4	N/A	2-Port natural fitment.
1982	Nissan	310	1.5L	L4	N/A	2-Port natural fitment.
1982	Nissan	720	2.2L	L4	N/A	2-Port natural fitment.
1981	Nissan	200SX	2.0L	L4	N/A	2-Port natural fitment.
1981	Nissan	310	1.5L	L4	N/A	2-Port natural fitment.
1981	Nissan	510	2.0L	L4	N/A	2-Port natural fitment.
1981	Nissan	720	2.2L	L4	N/A	2-Port natural fitment.
1981	Nissan	810	2.8L	L6	N/A	OE No.14890-U7800; Neutral; 2 Ports
1980	Nissan	200SX	2.0L	L4	N/A	2-Port natural fitment.
1980	Nissan	310	1.4L	L4	N/A	2-Port natural fitment.
1980	Nissan	510	2.0L	L4	N/A	2-Port natural fitment.
1980	Nissan	720	2.0L	L4	N/A	2-Port natural fitment.
1979	Nissan	200SX	2.0L	L4	N/A	2-Port natural fitment.
1979	Nissan	310	1.4L	L4	N/A	2-Port natural fitment.
1978	Nissan	200SX	2.0L	L4	N/A	—
1978	Nissan	510	2.0L	L4	N/A	—
1977	Nissan	200SX	2.0L	L4	N/A	—
No rows match your filter.

Directly replaces or cross-references 13 part numbers

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

OSC — 13401Standard Ignition — PVS912-290557P113373-7034133-162201-143414890H85003662119111937E988EC963V40-1552