Sold out -16% sale
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Sierra Sierra O2 Sensor Wrench 2-1/8" Offset #18-8616 $6.56 $7.72
Sierra 18-8616 Engine ToolsSierra O2 Sensor Wrench 2-1/8" Offset #18-8616Normalized SKU: 188616UPC Code: 808282375959
Sold out -17% sale
Sierra Not Qualified for Free Shipping Sierra O2 Sensor Wrench Shielded #18-8613
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Sierra Sierra O2 Sensor Wrench Shielded #18-8613 $52.35 $62.82
Sierra 18-8613 Engine ToolsSierra O2 Sensor Wrench Shielded #18-8613Normalized SKU: 188613UPC Code: 80828237596
Sold out -15% sale
Sierra Not Qualified for Free Shipping Sierra O2 Sensor Wrench #18-8614
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Sierra Sierra O2 Sensor Wrench #18-8614 $3.35 $3.94
Sierra 18-8614 Engine ToolsSierra O2 Sensor Wrench #18-8614Normalized SKU: 188614UPC Code: 808282376000
Sold out -22% sale
Sierra Qualifies for Free Shipping Sierra Gimble Bearing Puller HD #18-79820-1
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Sierra Sierra Gimble Bearing Puller HD #18-79820-1 $324.11 $411.65
Sierra 18-79820-1 Engine Tools Details: For: Mercruiser, OMC, and Volvo Sierra Gimble Bearing Puller HD #18-79820-1Normalized SKU: 18798201UPC Code: 808282372798
Sold out -17% sale
Sierra Not Qualified for Free Shipping Sierra Plug Wire Sensor Clip Extension #18-9914
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Sierra Sierra Plug Wire Sensor Clip Extension #18-9914 $68.33 $81.99
Sierra 18-9914 Engine Tools Description: Extension lead with plug wire sensor clip for 18-9903 78" (2m) long shielded cable with BNC connector Sensor accepts wires of up to 3/8" (9mm) diameter Cable can also be used with coil on plug sensor supplied with the 18-9903 Normalized SKU: 189914UPC Code: 808282373979
Sold out -22% sale
Sierra Laser Tachometer and Counter #18-9912 Sierra Laser Tachometer and Counter #18-9912
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Sierra Sierra Laser Tachometer and Counter #18-9912 $171.24 $217.48
Sierra 18-9912 Engine Tools Sierra Laser Tachometer and Counter #18-9912 Features: Measures from 2.5 to 99999 RPM 0.05% Accuracy 2-20" (5-50cm) Measuring Range LCD display with symbols and backlight On-target display indicator Maximum and minimum memory recall functions Laser-powered optical system easy to use under all light conditions Ergonomic Design Use With: 8-9911: Reflective Tape Normalized SKU: 189912UPC Code: 808282373948
Sold out -17% sale
Sierra Not Qualified for Free Shipping Sierra Smartach Diesel and Gasoline Tachometer #18-9913
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Sierra Sierra Smartach Diesel and Gasoline Tachometer #18-9913 $44.84 $53.80
Sierra 18-9913 Engine Tools Measures from 200 to 9,999 RPM, .05% accuracy Measures RPM for any engine equipped with an alternator Not affected by engine vibrations No complicated setup, simply connect to the battery or cigarette lighter plug Includes: hard shell carrying case Large 4 1/2 digit LCD display Normalized SKU: 189913UPC Code: 808282373955
Sold out -17% sale
Sierra Not Qualified for Free Shipping Sierra Oxygen Sensor Tester/Simulator #18-9910
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Sierra Sierra Oxygen Sensor Tester/Simulator #18-9910 $31.84 $38.00
Sierra 18-9910 Engine Tools Oxygen sensor signal output is shown in real-time on an LED bar graph The two-digit alphanumeric display shows the sensor output cross count per second Simulates the senors rich or lean outputs Automatic detection of common wire misconnections Compatible with zirconium, titanium and air/fuel ratio sensors Includes hard shell carrying case For: Testing & diagnostics on any Oxygen Sensor to determine whether the sensor needs replaced Normalized SKU: 189910UPC Code: 808282373924
Sold out -20% sale
Sierra Not Qualified for Free Shipping Sierra Analyzer Engine Ignition #18-9903
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Sierra Sierra Analyzer Engine Ignition #18-9903 $489.99 $611.56
Sierra 18-9903 Engine ToolsSierra Analyzer Engine Ignition #18-9903Normalized SKU: 189903UPC Code: 808282373856
-25% sale
Sierra Not Qualified for Free Shipping Sierra Compression Tester Digital #18-9900
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Sierra Sierra Compression Tester Digital #18-9900 $325.00 $427.80
Sierra 18-9900 Engine ToolsSierra Compression Tester Digital #18-9900Normalized SKU: 189900UPC Code: 808282370404
Sold out -17% sale
Sierra Not Qualified for Free Shipping Sierra Adapter Deep Well Compression Test #18-9902
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Sierra Sierra Adapter Deep Well Compression Test #18-9902 $32.47 $38.76
Sierra 18-9902 Engine ToolsSierra Adapter Deep Well Compression Test #18-9902Normalized SKU: 189902UPC Code: 808282370381
-20% sale
Sierra Not Qualified for Free Shipping Sierra Fluid Dispenser/Extractor #18-52206
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Sierra Sierra Fluid Dispenser/Extractor #18-52206 $73.50 $91.24
Sierra 18-52206 Engine ToolsSierra Fluid Dispenser/Extractor #18-52206Normalized SKU: 1852206UPC Code: 808282370367
-17% sale
Sierra Not Qualified for Free Shipping Sierra Tube Kit #18-52207
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Sierra Sierra Tube Kit #18-52207 $37.48 $44.73
Sierra 18-52207 Engine ToolsSierra Tube Kit #18-52207Normalized SKU: 1852207UPC Code: 808282370374
Sold out -17% sale
Sierra Dispenser Fluid #18-52205
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Sierra Sierra Dispenser Fluid #18-52205 $29.30 $34.97
Sierra 18-52205 Engine Tools Key Features: For easily dispensing fluids in any application Large 1.2 gallon capacity Sealed internal pump components Flow control valve equipped Quick connect fittings 20 PSI Max Pressure Includes pressure gauge Integrated pressure relief valve Sierra Dispenser Fluid #18-52205Normalized SKU: 1852205UPC Code: 808282370398
-20% sale
Sierra Not Qualified for Free Shipping Sierra Verado Flywheel Puller/Lifting Eye #18-9897
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Sierra Sierra Verado Flywheel Puller/Lifting Eye #18-9897 $479.84 $598.89
Sierra 18-9897 Engine ToolsSierra Verado Flywheel Puller/Lifting Eye #18-9897Normalized SKU: 189897UPC Code: 808282361136
-20% sale
Sierra Not Qualified for Free Shipping Sierra Oil Change Kit #18-9393
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Sierra Sierra Oil Change Kit #18-9393 $80.59 $100.04
Sierra 18-9393 Engine ToolsSierra Oil Change Kit #18-9393Normalized SKU: 189393UPC Code: 808282359874
-17% sale
Sierra Not Qualified for Free Shipping Sierra Oil Change Kit #18-9391
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Sierra Sierra Oil Change Kit #18-9391 $54.86 $65.83
Sierra 18-9391 Engine ToolsSierra Oil Change Kit #18-9391Normalized SKU: 189391UPC Code: 808282359850
-17% sale
Sierra Not Qualified for Free Shipping Sierra Oil Change Kit #18-9390
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Sierra Sierra Oil Change Kit #18-9390 $43.49 $52.18
Sierra 18-9390 Engine ToolsSierra Oil Change Kit #18-9390Normalized SKU: 189390UPC Code: 808282359843
-17% sale
Sierra Not Qualified for Free Shipping Sierra Oil Change Kit #18-9392
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Sierra Sierra Oil Change Kit #18-9392 $73.94 $88.72
Sierra 18-9392 Engine ToolsSierra Oil Change Kit #18-9392Normalized SKU: 189392UPC Code: 808282359867
Sold out -22% sale
Sierra Not Qualified for Free Shipping Sierra Ignition Spark Tester #18-8960
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Sierra Sierra Ignition Spark Tester #18-8960 $137.26 $174.33
Sierra 18-8960 Engine ToolsSierra Ignition Spark Tester #18-8960Normalized SKU: 188960UPC Code: 808282361167

Frequently Asked Questions

First Choice Marine is an online marine retailer carrying a diverse line of marine parts and accessories and related items from industry-respected and demanded manufacturers and suppliers. Through our diverse distributor network, we are able to access over 150,000 items, including our current site inventory, new products being added, and special order items. If you need it on your boat... we are your one-stop shop!

Yes, we offer FREE Shipping on most orders over $149 to US-48*.

Each product displays a shipping status message, just above the item price. Below is the meaning for each of these codes.

  • Qualifies for Free Shipping: This item qualifies for free shipping when the order is $149+
  • Qualifies for Free Ground Shipping: This item qualifies for free ground shipping when the order is $149+.
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Below the price of the item, on the product page, there is a message indicating the availability of the product.

The quantity on hand is updated as inventory events happen and matches what we have available. If you have urgent needs and we are close to what you need, contact us, and we can confirm stock.

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