Accessory Installation Guide
| 2022MY BRZ Engine Block Heater | A091SCC011 |
Installation Instructions
Part Number: A091SCC011
Description: Engine Block Heater, BRZ
Tools Required
3/8” & 1/2” Drive rachets
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
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.
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
Disconnect both oxygen sensor wires at the front of the engine underneath the radiator hose.
1-3.1
Remove exhaust manifold per shop manual.
1-3.2
Remove exhaust system bolts 1-14mm support bolt at the center and 2-14mm spring bolts. Disconnect resonator flange from exhaust extension pipe to allow clearance for removing headers.
1-4
Locate threaded and remove core plug on RH side of engine.
Remove core plug and drain remaining coolant.
NOTE: Be careful when removing plug as coolant may be hot and clearance is tight.
1-5
Install gasket (1) and coat threads of heater bo1dy with high temperature, gasket compound (2).,
1-6
Install engine block heater into core plug opening and tighten with adjustable pliers or 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.
1-7
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.
1-8
Route block heater harness forward towards the oil filler tube.
With a heat resistant wire tie, attach the block heater harness to the bottom cam position sensor harness.
Note: Ensure that the block heater harness does not make contact with the engine casting or the exhaust manifold.
1-9
Attach engine block heater harness to the cam solenoid harness that is under the engine block identification sticker using heat resistant wire tie
1-10
Route engine heater harness between the engine block and the upper radiator hose. Attach the third heat resistant wire tie to the engine block heater harness where the tape mark meets the main engine ECU harness towards the passenger side chassis of the vehicle.
1-11
Direct the engine block heater harness around radiator and down towards the radiator plastic plug and through the trim hole for the ambient temperature sensor harness.
1-12
Tie down the heat resistant wire tie to the ambient temperature harness that is fed through the slot in the radiator trim.
1-13
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.
1-14
Re-install exhaust system and engine covers (if equipped).
Refill coolant.
A091SCC011
- Genuine Subaru
Engine Block Heater A091SSG001 (supersedes 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
- Engine Block Heater kit
- Genuine Subaru Part Number: A091SXC001 (Replaces A091SXC000)
- Ascent 2019 2020 2021 2022 2023 2024 2025 2026
- Warms engine coolant to promote easier starting in extreme cold conditions. Plugs into a a household electrical outlet.
- Plugs into a a household electrical outlet.
- 【Wide Range of Use Scenarios】: This Magnetic Engine Block Heater is suitable for a wide range of vehicles and equipment, including cars, trucks, tractors, snow blowers, chainsaws, and snowmobiles, and can be applied to various components such as oil pans, engine blocks, battery holders, and intake manifolds, with additional uses including warming hydraulic systems and thawing frozen gutters, livestock feeders, locks, and pipes.
- 【Smart and Secure】: Ensuring safety from overheating, the magnetic heater is equipped with an internal thermostat. It automatically disconnects at 130°C and resumes heating once the temperature drops to 60°C, providing a safer and more dependable operation.
- 【Effortless Installation】: The magnetic heater boasts a robust magnetic base that securely attaches to metal surfaces, eliminating the need for any mechanical installation. This feature makes it incredibly easy and straightforward to use, saving you time and effort.
- 【Premium Craftsmanship】: Made with durable materials and a practical grip, it protects your hands from heat and ensures comfortable use. The strong magnetic base and heat-resistant construction provide reliable performance, ensuring the heater stays securely attached and functions effectively even in demanding conditions.
- 【User-Friendly Installation】: The magnetic design of the heater allows for easy attachment to oil pans, engine blocks, or battery holders, providing a versatile solution for various applications. The flexible 43-inch (110cm) power cord offers added convenience, allowing you to position the heater where needed while maintaining a safe and reliable connection to a power source.
- Easy to Use: Clean the surface; Peel off the backing paper in brown color; apply the silicone heater pad to the surface cleaned making sure no gap or air bubbles trapped under the pad. Plug power cord into any wall outlet. Note: The engine heating pad is designed to be used on the metal surface to heat the fluid, and do not use it on any plastic surface on the engine
- Keep the Engine Warm: In every cold winter, using this heater and battery heating pad can quickly start the engine to maintain good engine oil temperature and improve engine performance. Use the silicone battery heater pad to heat up engine oil about 15 minutes. The oil temperature will be heated up to 194 degrees Fahrenheit (90 ℃), which will be easy to start your car
- Temperature Protection: When the temperature exceeds 194 F/90 C, the universal heating pad will automatically turn off. When the temperature drops to around 40 C, restart heating to avoid safe issues caused by high temperatures
- Features: Silicone rubber heating board is composed of silicone rubber and glass fiber cloth, high insulation performance, safe use. It is wear -resistant, heat -resistant, waterproof and oil -proof, not easy to be corroded, which can have a longer service life. Us standard plug, high power 120V 300w, line length 1.5m, Larger size (5.91*7.87inch), fast heating
- WIDELY USE: The silicone heater pad is widely use on RVs, campers, trailers, boats, and ships in winter, which is installed in engine oil pan, oil tank, reservoir, transmission oil pan and so on
Last update on 2026-07-01 / Affiliate links / Images from Amazon Product Advertising API
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Installation Instructions Part Number: A091SCC011 Description: Engine Block Heater, BRZ (Kit Contents) Tools Required Icon Legends / Cautions Description Issue Date Page Engine Block Heater, BRZ 1 9/13/2021 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 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. Installation Instructions Installation Description Issue Date Page 2022 BRZ Engine Block Heater 1 9/13/2021 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 Disconnect both oxygen sensor wires at the front of the engine underneath the radiator hose. 1-2 Remove exhaust manifold per shop manual. 1- 3.1 1-3.2 Remove exhaust system bolts 1-14mm support bolt at the center and 2-14mm spring bolts. Disconnect resonator flange from exhaust extension pipe to allow clearance for removing headers. Part Number: A091SCA000 Description: Engine Block Heater, BRZ O2 Sensor Plug Locations Installation Instructions Installation Description Issue Date Page 2022 BRZ Engine Block Heater 1 9/13/2021 Subaru of America 3 / 5 1-4 1-5 1-6 1-7 Part Number: A091SCA000 Description: Engine Block Heater, BRZ Locate threaded and remove core plug on RH side of engine. Remove core plug and drain remaining coolant. NOTE: Be careful when removing plug as coolant may be hot and clearance is tight. Install engine block heater into core plug opening and tighten with adjustable pliers or 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. Installation Instructions Installation Description Issue Date Page 2022 BRZ Engine Block Heater 1 9/13/2021 Subaru of America 4 / 5 1-8 1-9 1-10 Route block heater harness forward towards the oil filler tube. With a heat resistant wire tie, attach the block heater harness to the bottom cam position sensor harness. Note: Ensure that the block heater harness does not make contact with the engine casting or the exhaust manifold. Part Number: A091SCA000 Description: Engine Block Heater, BRZ Attach engine block heater harness to the cam solenoid harness that is under the engine block identification sticker using heat resistant wire tie Route engine heater harness between the engine block and the upper radiator hose. Attach the third heat resistant wire tie to the engine block heater harness where the tape mark meets the main engine ECU harness towards the passenger side chassis of the vehicle. 1-11 Direct the engine block heater harness around radiator and down towards the radiator plastic plug and through the trim hole for the ambient temperature sensor harness. Installation Instructions Installation Description Issue Date Page 2022 BRZ Engine Block Heater 1 9/13/2021 Subaru of America 5 / 5 1-12 1-13 1-14 Tie down the heat resistant wire tie to the ambient temperature harness that is fed through the slot in the radiator trim. Part Number: A091SCA000 Description: Engine Block Heater, BRZ 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. 1-15 Re-install exhaust system and engine covers (if equipped). Refill coolant.
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