Electronic Ignition Conversion Kit
for early 4-cylinder
Non-Vacuum-Advance Bosch Distributors
with 2-Piece Points
For 12-Volt, Negative Ground Electrical Systems Only
3BOS4C2
Early, non-vacuum-advance, 4-cylinder Bosch distributor with 2-piece points.
Note upright brass pivot pin.
If a Bosch distributor has 2-piece points, an upright brass pivot pin will remain,
standing up from the breaker plate, after the points have been removed.
3BOS4C2 Electronic Ignition Conversion Kit: Fits certain VW, Porsche, BMW, Alfa-Romeo, Mercedes-Benz, Volvo, Volvo-Penta, etc., with non-vacuum-advance distributors with 2-piece points, including these Bosch distributors:
0 231 100 041
0 231 110 041
0 231 129 010
0 231 129 019
0 231 129 022
0 231 153 009
VE4BRS383
VJ4BR8
VJR4BR9
VJR4BR11
VJR4BR18
VJR4BR24
Also available for 6-volt, negative ground electrical systems - 3BOS4C2-6N
Also available in 6-cylinder version - 3BOS6C2 (12-volt) or 3BOS6C2-6N (6-cylinder, 6-volt, negative ground)
The Hot-Spark electronic ignition conversion kit replaces breaker points and condenser in the distributor to provide rock-solid reliability. With the Hot-Spark electronic ignition, dwell and timing are always spot-on accurate.
No matter how strong your engine is, you won't get the most out of it without a good spark. The stock Bosch ignition system used technology that dates back a century - to the Kettering system, which was introduced in the 1910 Cadillac. Even though you can adjust breaker points for near-electronic ignition performance, they will burn and wear within a few thousand miles, long before the recommended replacement interval. With points, the timing will drift; power and fuel economy will suffer.
The Hot-Spark electronic ignition conversion kit delivers a strong spark every time and is maintenance-free. You'll notice quicker starts, more top end power and a little gas mileage boost. It's as easy to install as points and condenser!
Advantages of the Hot-Spark electronic ignition conversion kit:
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Replaces points and condenser with solid-state electronics
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Set it and forget it - Never adjust points and timing again!
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Zero maintenance
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Delivers far more voltage to the spark plugs than points-based points
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Reliable Hall-effect technology
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Never gets out of adjustment
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Rock-steady reliability
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Dwell and timing are always spot-on accurate
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Increased gas mileage, fuel economy
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Quick starting
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Smooth idling
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Cleaner emissions
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Longer spark plug life
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Longer engine life
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Cleaner engine oil due to less unburned fuel
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Longer interval between oil changes
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Easy to install - If you can install points, you can install the Hot-Spark electronic ignition conversion
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No points to wear, burn, pit or corrode
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No condenser needed
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Absolutely no points float - zero - even at redline RPM and beyond!
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Never worry about drifting dwell or timing again
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No rubbing parts - nothing to wear out!
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Fits completely under the distributor cap
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Stealth modification - maintains stock appearance
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Includes everything you need, no external ignition box required.
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Works with stock distributor and coil
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Encased in high-temp thermoplastic - protected from the elements and oil, grease, dirt, water, etc.
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Never bother with points or condenser again!
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The best investment you'll ever make for your vehicle
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Saves precious ($$$) fuel
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Stock Bosch points coil with 3.0 Ohms or more internal, primary resistance required.
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The Beru Germany Blue Coil with 3.3 Ohms primary resistance is ideal for HotSpark ignition kits.
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External Ballast Resistor: If the charging system voltage, measured at the coil's + terminal, is more than 14.0 volts at any RPM level, the voltage regulator likely needs replacing or a 1.4 Ohm ballast resistor should be wired between the coil's + terminal and the red HotSpark ignition wire. Too much voltage can damage the ignition module and other electronic components.
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Requires a 12-volt, negative ground electrical system.
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How many miles until the Hot-Spark electronic ignition conversion kit pays for itself? Click here
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Three-year replacement warranty
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Measuring Coil Resistance (and more): www.Hot-Spark.com/Coil.htm
Virtually all 4-cylinder, air-cooled VW/Porsche distributors have right-hand points. Early Bosch distributors (generally pre-1968 or so) have 2-piece points. Some BMW, Porsche and Mercedes distributors have left-hand points; some have right-hand points. Please compare the points in your Bosch distributor to the photo of points below:
Determine whether your Bosch distributor has single-piece points, as early (pre-1968 or so) Bosch distributors typically have 2-piece points. If it has 2-piece points, a brass pivot pin will remain, standing up from the breaker plate, after you remove the points.
Sorry, we don't have ignition kits to fit early Bosch/VW distributors with the large distributor cap.
Various Bosch
4-cylinder, Non-Vacuum-Advance Distributors with 2-Piece, Right-Hand Points:
0 231 100 041 - 3BOS4C2
0 231 110 041 - 3BOS4C2
0 231 129 010 - 3BOS4C2
0 231 129 019 - 3BOS4C2
0 231 129 022 - 3BOS4C2
0 231 153 009 - 3BOS4C2
VE4BRS383 - 3BOS4C2
VJ4BR8 - 3BOS4C2
VJ4BR24 - 3BOS4C2
VJ4BR25 - 3BOS4C2
VJR4BR8 - 3BOS4C2
VJR4BR9 - 3BOS4C2
VJR4BR11 - 3BOS4C2
VJR4BR18 - 3BOS4C2
VJR4BR24 - 3BOS4C2
1954-5/1959 VW Type 2, 36HP Bosch VJ4 BR8 -
3BOS4C2
1959-1960 VW Type 2, 40HP - Bosch VJ4 BR25 -
3BOS4C2
1956-1957 Porsche 356 - Bosch VJR4 B9 -
3BOS4C2
1958-1963 Porsche 356 - Bosch VJR4 BR18 -
3BOS4C2
1964-1967 Porsche 356/912 - Bosch 0 231 129 022 -
3BOS4C2
Mercedes Benz 190SL - Bosch VJR4 BR11 -
3BOS4C2
Mercedes Benz 190SL - Bosch VJR4 BR24 -
3BOS4C2
6-Volt, negative ground ignition kit for the above-listed mechanical-advance
distributors - 3BOS4C2-6N
If a Bosch distributor has 2-piece points, an upright, brass pivot pin will
remain, standing up from the breaker plate, after the points have been removed.
For 12V negative ground electrical systems only.
Hot-Spark Electronic Ignition Conversion Kits for Bosch Distributors:
3BOS4U1
4-cylinder distributors with 1-piece points, right hand pivot pin - US
$49.99
Contact breaker points Bosch part no. 1 237 013 044/051/063/065/066 JFU4
3BOS4U2L
4-cylinder distributors with 1-piece points, left hand pivot pin - US $69.99
Contact breaker points Bosch part no. 1 237 013 052/059/061/062 JFUR4
3BOS4C2 4-cylinder
distributors with 2-piece points, right hand pivot pin, without vacuum advance
unit - US $69.99
Contact breaker points Bosch part no. 1 237 013 000 [not for 006/026/039] -
12-volt, negative ground only
3BOS4C2-6N 4-cylinder
distributors with 2-piece points, right hand pivot pin, without vacuum advance
unit - US $69.99
Contact breaker points Bosch part no. 1 237 013 000 [not for 006/026/039] -
6-volt, negative ground only
3BOS4V2 4-cylinder
distributors with 2-piece points, right hand pivot pin, with vacuum advance unit
- US $69.99
Contact breaker points Bosch part no. 1 237 013 006/026/039 [not for 000]
3BOS4V2L
4-cylinder distributors with 2-piece points, left hand pivot pin - US $69.99
Contact breaker points Bosch part no. ....
3BOS6U1
6-cylinder distributors with 1-piece points, right hand pivot pin, and small*
type shaft lobes - US $69.99
* hexagonal part of distributor shaft 15.5mm measured across the flat sides
(17.5mm across the corners) JFU6
Contact breaker points Bosch part no. 1 237 013 044/051/063/065/066/112
3BOS6U2L
6-cylinder distributors with 1-piece points, left hand pivot pin, and small*
type shaft lobes - US $69.99
* hexagonal part of distributor shaft 15.5mm measured across the flat sides
(17.5mm across the corners) JFUR6
Contact breaker points Bosch part no. 1 237 013 052/059/061/062/082
3BOS6U3
6-cylinder distributors with 1-piece points, right hand pivot pin, and large*
type shaft lobes - US $69.99
* hexagonal part of distributor shaft 18.6mm measured across the flat sides
(20mm across the corners)
Contact breaker points Bosch part no. 1 237 013 044/051/063/065/066
3BOS6U3L
6-cylinder distributors with 1-piece points, left hand pivot pin, and large*
type shaft lobes - US $69.99
* hexagonal part of distributor shaft 18.6mm measured across the flat sides
(20mm across the corners)
Contact breaker points Bosch part no. 1 237 013 052/059/061/062
3BOS6C2
6-cylinder distributors with 2-piece points, right hand pivot pin (type on top
in picture), and small* type shaft lobes - US $69.99
* hexagonal part of distributor shaft 15.5mm measured across the flat sides
(17.5mm across the corners)
Contact breaker points Bosch part no. 1 237 013 000 [not for 006/026/039]
3BOS6C2-6N
6-cylinder distributors with 2-piece points, right hand pivot pin (type on top
in picture), and small* type shaft lobes - US $69.99
* hexagonal part of distributor shaft 15.5mm measured across the flat sides
(17.5mm across the corners)
Contact breaker points Bosch part no. 1 237 013 000 [not for 006/026/039]
6-volt, negative ground only
3BOS6C3 6-cylinder
distributors with 2-piece points, right hand pivot pin (type on top in picture),
and large* type shaft lobes - US $69.99
* hexagonal part of distributor shaft 18.6mm measured across the flat sides
(20mm across the corners)
Contact breaker points Bosch part no. 1 237 013 000 [not for 006/026/039]
3BOS6V2 6-cylinder
distributors with 2-piece points, right hand pivot pin (type below in picture),
and small* type shaft lobes - US $69.99
* hexagonal part of distributor shaft 15.5mm measured across the flat sides
(17.5mm across the corners)
Contact breaker points Bosch part no. 1 237 013 006/026/039
3BOS6V3 6-cylinder
distributors with 2-piece points, right hand pivot pin (type below in picture),
and large* type shaft lobes - US $69.99
* hexagonal part of distributor shaft 18.6mm measured across the flat sides
(20mm across the corners)
Contact breaker points Bosch part no. 1 237 013 006/026/039
3BOS6V2L 6-cylinder
distributors with 2-piece points, left hand pivot pin, and small* type shaft
lobes - US $69.99
* hexagonal part of distributor shaft 15.5mm measured across the flat sides
(17.5mm across the corners)
Contact breaker points Bosch part no. 1 237.....
3BOS6V3L 6-cylinder
distributors with 2-piece points, left hand pivot pin, and large* type shaft
lobes - US $69.99
* hexagonal part of distributor shaft 18.6mm measured across the flat sides
(20mm across the corners)
Contact breaker points Bosch part no. 1 237.....
For 12-volt, negative ground electrical systems only, unless noted otherwise.
International Buyers – Please Note:
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Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility.
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Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying.
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Easy to Install - Replace Points and Condenser with Solid-State Electronics |
Electronic Ignition Conversion Kit. Replaces points and condenser in certain Bosch 4-cylinder, non-vacuum-advance distributors with 2-piece, right-hand pivot pin points.
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3.3 Ohms primary resistance |
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3.3 Ohms primary resistance Ideal for Use with Hot-Spark 4- and 6-cyl Electronic Ignition Conversion Kits with red 3-series ignition module or for use with breaker points.
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Heavy-duty coil with 3.3 Ohms primary resistance. Ideal for points or electronic ignition. Produces strong, blue spark at the plugs. Ideal for HotSpark ignition kits or for use with points.
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Easy to Install - Replace Points and Condenser with Solid-State Electronics |
Electronic Ignition Conversion Kit. Replaces points and condenser in certain Bosch 4-cylinder, non-vacuum-advance distributors with 2-piece, right-hand pivot pin points.
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for 4-cylinder, air-cooled VW and Porsche |
Replacement distributor for air-cooled VW & Porsche 4-cylinder engines. Replaces stock distributor or 009/050 distributors. Requires vacuum source from carburetor or throttle body. With 3BOS4U1 electronic ignition installed, instead of points/condenser. Everything you need included - no external ignition box required.
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Foreign Orders: Shipping discount available if purchasing multiple items.
Click here for Hot-Spark Ignition Installation Instructions
Just a better idea. TM
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