Sierra Marine Engine Parts & Drive Parts   Sierra Marine is a trusted name in aftermarket replacement boat engine and drive parts. Sierra’s products are designed and engineered to exceed the high horsepower demands of today’s engines in the harshest marine environments. All Sierra products meet or exceed the original equipment part it replaces.   If you need help finding a part, we need, Make, Model, Year, Horsepower, and Serial number of your engine.   Warning: We can no longer ship engine parts International or to California Due to Prop 65.

6008 M-Series Battery Switch 3 Position - Red Switches a single battery to a single load group. Features: Ignition protected—safe for installation aboard gasoline powered boats Case design allows surface or rear panel mounting Specifications: Switch Type: Selector 3 Position Color: Red Battery Combine: No Switch Positions: 3 Maximum Voltage: 32V DC

m-Series Battery Switch Paralleling Link Bus Material: Tin-Plated Copper Continuous Rating: 250 Amperes DC WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Polyester housing is rust and corrosion proof. Removable plastic key for security. Two position switch OFF-ON. Two 10MM x 1.5MM stud terminals. For panels up to 1-1/4" thick. Four mounting holes in a rectangle 1.3" and .8" on centers.

m-Series Mini Dual Circuit Plus Battery Switch - Black Simultaneously switches two isolated battery banks or combines battery banks to all loads. Make before break contact design allows switching between battery banks without power interruption. Switch Type: Dual Circuit Plus Color: Black Switch Positions: 3 Battery Combine: Yes Alternator Field Disconnect: No Maximum Voltage: 32V DC Continuous Rating : 300A Intermittent Rating : 450A (5 min) Cranking Rating 10 sec: 1000A Cranking Rating 1 min: 650A Battery Inputs: 2 Cable Clearance For 4/0 AWG Cables: 1.12in (28.45 mm) Cable Size to Meet Ratings: 4/0 AWG (120mm²) Mounting Holes: Accept #10 Screw Terminal Stud Size: 3/8"-16 (M10) Terminal Stud Torque: 120 in-lb (13.56 Nm) Weight: 0.80lb (0.36 kg) WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Standard Battery Switch For any vehicle that needs to use two batteries where one battery is used for starting the engine, while the other is used to power auxiliary loads. This is a common situation in trucks, boats, RVs, police and rescue vehicles, and in ambulances or fire equipment. A selector switch allows use of the first battery, the second battery, or both batteries simultaneously. This provides back-up starting power in an emergency. Features: These switches combine the functions of Battery Selector and Master Disconnect Switches to give four battery power options: Power cut off at the source Power On, Battery 2 Power On, Battery 1 Power On, both Batteries Battery selector switches provide a positive battery disconnect, which has many advantages: It gives a reliable shutdown of power during maintenance The version with the key protects against theft of the vehicle, when unattended It helps protect against electrical fires, when the vehicle is not in use, and minimizes battery drain Specifications: Rating: 500A intermittent, 310A continuous, 6-36V DC Electrical ratings on UL labels are conservative. Electrical Ratings Labeled UL 707B Use with either alternators or generators Make before break design permits operation through the three On positions with the engines running. Engines should always be shut down before turning to Off Heavy-Duty Construction Vaporproof, weather-, dust- and corrosion-resistant Durable, fracture-resistant high temperature plastic case, knob and insulator Switches conform to USCG section 183.410 for ignition protection Heavy duty copper stud terminals, with brass hexnuts Can be surface mounted, or installed through a 3 5/16" diameter hole in the panel Dimensions: Flange: 6" (152.4mm) diameter, overall height 2 5/8" (66.7mm) Terminals: 3 copper studs, 3/8" (9.5mm) diameter

Pro Installer 400A EZ-Mount Dual Bank Control Battery Switch - MC10 Another addition to our multi award winning Pro Installer EZ Mount range, the innovative Dual Bank Control switch is like 3 switches in one, House, Start, and Emergency Parallel. Offering easy intuitive control for the boater, the Dual Bank Control switch features a unique isolated-On position which allows use of house loads and VHF radio if the engine needs to be electrically isolated, or allows the engine to be isolated during servicing while still providing power to house loads (for lighting, stereo, fridge etc). For boats or vehicles with single Engine and House battery bank, Dual Bank Control allows the use of optimized battery banks for their respective loads; an appropriately sized deep cycle bank for House loads, and thin plate starting batteries for the Engine. Further, sensitive electronics are isolated from starter motor induced voltage spikes because House and Engine loads are separated during normal operation, unlike Selector battery switches. As easy as 1, 2, 3, these revolutionary EZ Mount battery switches allow you to wire from the front for the easiest surface mounting. With their shared interconnection height, EZ-Mount battery switches "cluster" directly with the Pro Installer Busbar Range, resulting in the fastest, most compact installations. Optimized cable access makes installation a breeze. Tested to UL1107 ignition protection, CE Tinned copper 10mm (3/8 inch) studs Stainless steel washers and nuts Fiber reinforced plastics 400A Continuous / 600A 5 minutes Intermittent / 1500A 10 seconds Cranking (cable size to achieve ratings 120mm}, 4/0, smaller cable size will reduce the Amp rating) Waterproof to IP67 Same interconnection height as Pro Installer Removable knob allows isolation during servicing 3 removable side plates for protection Industry standard 3.85 x 3.85 inch footprint For surface mounting only Each Pro Installer battery switch is fully tested for pressure sealing, rotation force and electrically load tested Specifications Mounting: Surface Only Voltage: 48v DC (for 12-48v systems, both banks must be same voltage) Rating: 400 Cont / 600 Inter / 1500 Crank Dims: 3.85" x 3.85" x 3.62" Operation: 1, 1/2, Parallel, Off Stud: 4x 10 mm (3.8") WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Pro Installer 400A Double Pole Battery Switch - MC10 A powerful new generation battery switch with outstanding performance and features for both the installer and end user. Three mounting options: surface, rear panel, and front panel mounting, plus optimized cable access makes installation a breeze. Pro Installer switches set the new benchmark with outstanding ergonomics, intuitive look/feel, and are engineered from the finest materials to withstand the harsh marine environment. Same industry standard mounting with On/Off operation. Used where positive and negative supplies must be isolated at the same time. SAFETY NOTE: BEP does not recommend this for switching house and start battery systems at the same time, for safety reasons. You may need to isolate your engine battery in an emergency, but not your house battery which typically powers the communications Specifications Mounting: Surface, Rear or Front Voltage: 48v DC (for 12-48v systems) Rating: 400 Cont / 600 Inter / 1500 Crank Dims: 3.85" x 3.85" x 3.62" Operation: On/Off Stud: 4x 10 mm (3.8") WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Remote Operated Battery Switch, 275A Cont The MD range of battery switches allow you to install the battery switch very close to the battery, to remotely manage the increased electrical loads found on today's boats. This reduces cable lengths and sizes, providing significant savings in expense and weight of copper battery cable. They are ideal for remote isolation of bow and stern thrusters. Remote operation Battery switch can be mounted alongside battery, reducing cable lengths and cable sizes. (Large cost and weight saving in copper cables) Reduced installation labor due to shorter battery cable runs Manual override option to meet CE/ABYC requirements Power Draw with switch off: 12mA LED status identification for remote control switch Same capacities/specifications and mounting options as standard BEP battery switches Uses interchangeable labeling system (Item # 713 or 715) Specifications LxWxH: 2.7" x 2.7" x 4" Rating (A DC) Cont: 275 Rating (A DC) Inter: 455 Rating (A DC) Crank: 1250 Voltage (V DC): 9.5-32 Function: On/Off Stud Size: 2x (3.8"/10mm) WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Remote Operated Battery Switch w/Optical Sensor 500A 12/24V The MD range of battery switches allow you to install the battery switch very close to the battery, to remotely manage the increased electrical loads found on today's boats. This reduces cable lengths and sizes, providing significant savings in expense and weight of copper battery cable. They are ideal for remote isolation of bow and stern thrusters. The 720-MDO has been enhanced to offer easy standard installation, or advanced options capable of switching different voltage circuits from the main supply (for example: a 48 volt bow thruster with a 24 volt house supply). The optical sensor uses the same easy connection for standard installation and gives you the ability to control different voltage circuits such as 36 or 48 volts. It can be used to switch positive or negative lines and the main contacts can be isolated from the control circuit allowing operation via another battery source. This optical sensor also has low stand-by current draw (<5mA). Remote operation Battery switch can be mounted alongside battery, reducing cable lengths and cable sizes. (Large cost and weight saving in copper cables) Reduced installation labor due to shorter battery cable runs Manual override option to meet CE/ABYC requirements LED status identification for remote control switch Same capacities/specifications and mounting options as standard BEP battery switches Uses interchangeable labeling system (Item # 713 or 715) Specifications: LxWxH: 4" x 4" x 4.33" Rating (A DC) Cont: 500 Rating (A DC) Inter: 700 Rating (A DC) Crank: 2500 Voltage (V DC): 9.5-32 Function: On/Off Stud Size: 2x (1/2"/12mm) WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Remote Operated Battery Switch, 275A Cont - Deutsch Plug The MD range of battery switches allow you to install the battery switch very close to the battery, to remotely manage the increased electrical loads found on today's boats. This reduces cable lengths and sizes, providing significant savings in expense and weight of copper battery cable. They are ideal for remote isolation of bow and stern thrusters. Remote operation Battery switch can be mounted alongside battery, reducing cable lengths and cable sizes. (Large cost and weight saving in copper cables) Reduced installation labor due to shorter battery cable runs Manual override option to meet CE/ABYC requirements Power Draw with switch off: 12mA LED status identification for remote control switch Same capacities/specifications and mounting options as standard BEP battery switches Uses interchangeable labeling system (Item # 713 or 715) Specifications LxWxH: 2.7" x 2.7" x 4" Rating (A DC) Cont: 275 Rating (A DC) Inter: 455 Rating (A DC) Crank: 1250 Voltage (V DC): 9.5-32 Function: On/Off Stud Size: 2x (3.8"/10mm) WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Heavy-Duty Battery Switch - 600A Continuous Features: The 720 Heavy-duty Battery Switch is well suited to larger vessels, being capable of handling the high electrical loads found on today's boats and RV's plus starting large diesel engines Rated at 600A continuous and 2500A cranking Can be rear panel, or surface mounted Uses the same proven style of self cleaning sliding copper contact used inside the 701 Interchangeable labeling system allowing a full range of applications WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Dual Battery Switch w/Mounting Ring & Legs - Bulkhead Mount The Perko Dual Battery Selector Switch allows the addition of an extra battery for accessories. This switch provides the flexibility of selection between batteries or combined operation of both batteries in parallel for starting or charging. It can also serve as an emergency main disconnect switch in the event of an electrical problem. All models are make before break design and are ignition protected. Four switch positions: Both "Off", Both "On", Battery 1 "On"/Battery 2 "Off", Battery 1 "Off"/Battery 2 "On" Materials & Finish Red polycarbonate polymer body Black polymer actuator key Nickel plated terminals Features For two or more batteries Unique oval shape mounts in a round hole Removable actuator key Technical Information Rating: 140 Amps Continuous, 200 Amps 5 Min. Intermittent, 250 Amps 30 Second Start For use with alternators and generators 6-50 V.D.C. Marine Electrical Systems Ignition Protected Face Dimensions: 3-7/8" x 3-1/4"

Easy Fit Battery Switch - 275A Continuous The Easyfit Battery Switch was created for installations where switches need to be recessed through varying thicknesses of panels. It achieves this through an easily removable threaded ring that allows for panel thicknesses up to 3/4" (19 mm). This switch uses the same features as the 701 with the removable key 45 degree past the off position, labeled handle and a removable back cover covering exposed terminals to meet ABYC specifications. It can also be surface mounted offering a unique style compared to other switches available on the market. BEP Marine Battery Switch Test Procedures (UL 1107) Continuous (1 hour), intermittent (5 minutes) and Cranking (engine starting - 10 seconds). The test is to determine the maximum current the switch can handle for the stated time, without the rear terminals exceeding 100 deg C (212 deg F) above the ambient temperature. The continuous and intermittent ratings are tested at 110% of specified ratings. All BEP switches are tested Independently to this specification by a 3rd party laboratory. Features: Can easily be retro-fitted in place of most European post and lever type switches Molded in high temperature, fiber reinforced plastics Tin-plated copper studs and nuts Ignition-protected WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Vertical Battery Switch Cluster w/DVSR - 1 Engine/2 Batteries BEP Dual Battery Switches with Digital VSR and Emergency Parallel Dual Battery charging clusters For use on charging systems under 140Amps To be used in the following systems: Single outboard dual battery bank Single alternator inboard engine dual battery bank Dimensions: 276L X 69W x 75H mm (vertical) WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.