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Accessory Installation Guide
2022MY WRX Engine Block Heater | A091SVC010 |
Installation Instructions
Part Number: A091SVC010
Description: Engine Block Heater, WRX
Tools Required
3/8” & 1/2” Drive ratchets
Socket extension 1/2” drive (6” long)
3/8” Drive extension (3” long)
1/2” Breaker bar
14mm socket-shallow (1/2” drive)
14mm wrench
12mm wrench
E10 TorxSocket (for exhaust studs)
Adjustable pliers (large) / 12 Point Crows Foot 1 7/16” inch
Screwdriver (flat blade)
Coolant drain pan
Coolant (mixed to OE specifications)
High temperature gasket compound
NOTE: It is required that the exhaust flange gaskets and rear donut gasket be replaced . These items are sold separately.
Installation
1-1
Disconnect Negative (-) battery cable from the battery sensor terminal. Hold the battery sensor carefully when removing the 10mm nut. Remove engine under covers (if equipped) and drain the cooling system
1-2
Wedge out exhaust manifold by removing all bolt and exhaust studs as per shop manual. Take off turbocharger heat shielding to aid manifold removal. NOTE: Be careful to not damage the oil pan, heat shielding or waste gate actuator in the removal process.
1-2.1
Remove Turbocharger heat shielding to help remove manifold.
1-3
Locate 36mm threaded core plug on RH side of engine and insert 14mm hex bit into the core plug and loosen. Remove core plug and drain remaining coolant. CAUTION: Coolant may be hot. NOTE: Clearance is tight avoid damaging engine block.
1-4
Install gasket (1) and coat threads of heater body with high temperature gasket compound (2).
1-5
Install engine block heater into core plug opening and tighten with adjustable pliers or a 12 Point Crows foot (1 7/16”) until gasket is seated completely to engine block. Tighten the heater an additional 60 +/‐10 degrees to acquire a torque of 90 +/‐0.5 [N‐m] or 66 +/‐0.5 [ft‐lbs].
CAUTION: Failure to follow proper tightening procedures may allow coolant to leak onto the hot exhaust pipe and cause a fire, resulting in serious personal injury and property damage.
1-6
Plug harness into heater element. Orient orange connector towards the front by twisting the orange connector inside the heater. Inside of heater can be rotated relative to the outer body.
1-7
Using the gold high temperature wire tie provided, attach the block heater harness to the taped section of coolant line. Route harness forward towards the camshaft housing. NOTE: Ensure the harness is not pressed against the coolant line rubber hose. Harness should be curved similar to the yellow line shape shown above.
1-8
Attach the engine block heater harness with a second gold high temperature zip tie to the Turbocharger wastegate actuator harness (black harness) at the indicated white tape mark.
Note: Ensure that the block heater harness does not make contact with the engine casting or the exhaust manifold.
1-9
Attach third gold zip tie to the engine block heater harness where the tape mark meets the main vehicle ECU harness towards the passenger side of the chassis frame rail. Feed plug and harness through the side of the radiator foam directing the harness towards the front lower grille.
1-10
Attach the 4thgold wire zip tie to the engine block heater harness along the ambient temperature sensor harness. CAUTION: Ensure one of the two black sleeved portions of the engine block heater harness is the portion of the harness that is contacting the side of the metal casing of the radiator to prevent melting any harness components/wires.
1-11
Route the engine heater harness to the passenger side of the lower air intake opening. Using the male plug protector attach the male plug to the grille work.
1-12
Re-install exhaust system and engine covers (if equipped). Refill coolant.
A091SVC010
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- Subaru
Genuine Engine Block Heater kit - A091SSJ000
- Warms engine coolant to promote easier starting in extreme cold conditions. Plugs into a a household electrical outlet.
- 2019-2024 Forester
- GENUINE SUBARU
- Genuine Subaru Genuine Engine Block Heater
- A091SSG000
- Warms engine coolant to promote easier starting in extreme cold conditions. Plugs into a a household electrical outlet.
- 2014-2016 Crosstrek Hybrid models
- 2014-2018 Forester
- Genuine Subaru Engine Block Heater A091SSG000
- 2014-2018 Forester
- 2014-2016 Crosstrek Hybrid models
- 2015-2019 Outback 2.5 2015-2019 Legacy 2.5
- Warms engine coolant to promote easier starting in extreme cold. Plugs into household electrical outlet
- Genuine Engine Block Heater kit
- A091SAN000
- 2020 2025 OUTBACK & 2020-2025 LEGACY
- Warms engine coolant to promote easier starting in extreme cold conditions. Plugs into a a household electrical outlet.
- Genuine Subaru
- Subaru Genuine Engine Block Heater kit
- A091SFL101 (replaces A091SFL100 )
- 2024 2025 Crosstrek
- 2024 Impreza
- 2025 Forester
- Premium Material: Composed of hard-wearing silicone, these two engine block heater pads are absolutely waterproof, oil-proof, low-temperature resistant and durable enough to serve you for a long time.
- Warm Up Your Engine Quickly：In cold winter, use the engine heater pad before starting your car takes just 10-15 minutes to bring the oil up to the right temperature, which reduces oil consistency, better lubricates the engine, and reduces wear.
- Easy to Use: Clean application surface. Peel off the paper backing from the heater. Put flush against the bottom of your oil pan,engine block or other metal surface and have the pad completely secured against the metal surface. Finally, plug the power cord into the outlet.
- Thermal Protection: These 150W/120V oil pan heater pads have a built-in automatic thermal protector that keeps the heating temperature at a constant 194°F/90°C, effectively preventing safety hazards caused by high temperatures.
- Warm Tips: Safety is always our most important concern. Please do not put the car engine heater pad on any plastic surface on your engine to keep from burning up. And do not put it on the air box intake.
- Product Type :Auto Part
- Package Dimensions :7.91" L X4.38" W X1.93" H
- Country Of Origin: USA
- Package Weight :1.21Lbs
- Ensure Quick Winter Starts And Reduce Engine Wear
- QUICKLY HEATS THE ENGINE - using Silicone Engine Block Heater Oil Pan Heating Pad in winter can ensure that the engine or transmission oil is effectively circulated,and the built-in thermostat will keep the temperature unchanged when it reaches the required working temperature. It will not continue to heat and burn your engine. It will heat up quickly after 5 seconds of power on and it only takes 10-15 minutes to heat the viscous fluid in the engine or transmission to a working temperature
- HIGH QUALITY SILICA GEL, CAN WITHSTAND TEMPERATURE UP TO 200°C - silicone car engine heater pad makes the engine or gearbox continuously and evenly heated,The surface temperature of the heater pad can reach 90℃, promotes the lubrication and working efficiency of the fluid in the engine and gearbox in winter, reduces the wear of equipment, and increases the service life of the engine and gearbox
- PRODUCT SPECIFICATIONS - The rated voltage of the engine oil pan block heater pad is 120V, the size is 4 X 5 Inch, the rated power is 150W, the back has 3M self-adhesive and is equipped with 68 Inch long power cord, high temperature resistance, low temperature resistance, waterproof, oil proof, Acid proof
- EASY TO INSTALL - car engine oil pan block heater pad is suitable for the metal surface of gearbox, engine fuel tank and other equipment, after cleaning the metal surface of the equipment, remove the paper backing of the product and then attach the heating pad to heat for 10-15 minutes, do not Apply the product to any plastic device for heating
- SCENES TO BE USED - oil pan heater pad is suitable for installation on metal surfaces of your car engine fuel tank, fuel tank, transmission and other equipment; non-plastic surface equipment，non-person use,When the engine heating pad is working, it is not recommended to touch it with your hands
Last update on 2025-04-17 / Affiliate links / Images from Amazon Product Advertising API
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SEOCONTENT-START
Installation Instructions Part Number: A091SVC010 Description: Engine Block Heater, WRX (Kit Contents) Tools Required Icon Legends / Cautions Description Issue Date Page Engine Block Heater, WRX 1 9/20/2021 Subaru of America 1 / 5 : Remove/Disconnect : Install : Critical Location 1) Read all instructions before proceeding with installation. If uncomfortable performing any procedures, have installation performed by a Subaru dealer technician. 2) Take care not to damage vehicle components during removal and installation. 3) Route wiring so that it does not rub against any sharp edges. o 3/8” & 1/2” Drive rachets o Socket extension 1/2” drive (6” long) o 3/8” Drive extension (3” long) o 1/2” Breaker bar o 14mm socket- shallow (1/2” drive) o 14mm wrench o 12mm wrench o E10 Torx Socket (for exhaust studs) o Adjustable pliers (large) / 12 Point Crows Foot 1 7/16” inch o Screwdriver (flat blade) o Coolant drain pan o Coolant (mixed to OE specifications) o High temperature gasket compound o NOTE: It is required that the exhaust flange gaskets and rear donut gasket be replaced . These items are sold separately. A Block Heater Element w/ Gasket B Heater Harness with Integrated Clip C (4X) Gold High Temp Wire Ties Installation Instructions Installation Description Issue Date Page 2022 WRX Engine Block Heater 1 9/20/2021 Subaru of America 2 / 5 Disconnect Negative (-) battery cable from the battery sensor terminal. Hold the battery sensor carefully when removing the 10mm nut. Remove engine under covers (if equipped) and drain the cooling system 1-1 1-2 Locate 36mm threaded core plug on RH side of engine and insert 14mm hex bit into the core plug and loosen. Remove core plug and drain remaining coolant. CAUTION: Coolant may be hot. NOTE: Clearance is tight avoid damaging engine block. 1- 2.1 1-3 Part Number: A091SVC010 Description: Engine Block Heater, WRX Wedge out exhuast manifold by removing all bolt and ehxaust studs as per shop manual. Take off turbocharger heat shielding to aid manifold removal. NOTE: Be careful to not damage the oil pan, heat shielding or waste gate accuator in the removal process. Remove Turbocharger heat shielding to help remove manifold. Installation Instructions Installation Description Issue Date Page 2022 WRX Engine Block Heater 1 9/20/2021 Subaru of America 3 / 5 1-4 1-5 1-6 1-7 Part Number: A091SVC010 Description: Engine Block Heater, WRX Install engine block heater into core plug opening and tighten with adjustable pliers or a 12 Point Crows foot (1 7/16”) until gasket is seated completely to engine block. Tighten the heater an additional 60 +/- 10 degrees to acquire a torque of 90 +/- 0.5 [N-m] or 66 +/- 0.5 [ft-lbs]. CAUTION: Failure to follow proper tightening procedures may allow coolant to leak onto the hot exhaust pipe and cause a fire, resulting in serious personal injury and property damage. Plug harness into heater element. Orient orange connector towards the front by twisting the orange connector inside the heater. Inside of heater can be rotated relative to the outer body. Using the gold high temperature wire tie provided, attach the block heater harness to the taped section of coolant line. Route harness forward towards the camshaft housing. NOTE: Ensure the harness is not pressed against the coolant line rubber hose. Harness should be curved similar to the yellow line shape shown above. Installation Instructions Installation Description Issue Date Page 2022 WRX Engine Block Heater 1 9/20/2021 Subaru of America 4 / 5 1-8 1-9 1-10 Attach the engine block heater harness with a second gold high temperature zip tie to the Turbocharger wastegate actuator harness (black harness) at the indicated white tape mark. Note: Ensure that the block heater harness does not make contact with the engine casting or the exhaust manifold. Part Number: A091SVC010 Description: Engine Block Heater, WRX Attach third gold zip tie to the engine block heater harness where the tape mark meets the main vehicle ECU harness towards the passenger side of the chassis frame rail. Feed plug and harness through the side of the radiator foam directing the harness towards the front lower grille. 1-11 3 Attach the 4th gold wire zip tie to the engine block heater harness along the ambient temperature sensor harness. CAUTION: Ensure one of the two black sleeved portions of the engine block heater harness is the portion of the harness that is contacting the side of the metal casing of the radiator to prevent melting any harness components/wires. 4 Route the engine heater harness to the passenger side of the lower air intake opening. Using the male plug protector attach the male plug to the grille work. Installation Instructions Installation Description Issue Date Page 2022 WRX Engine Block Heater 1 9/20/2021 Subaru of America 5 / 5 1-12 1-13 1-14 Part Number: A091SVC010 Description: Engine Block Heater, WRX 1-15 Re-install exhaust system and engine covers (if equipped). Refill coolant.
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