How-tos

Have you noticed your vehicle sluggishly struggling to accelerate, or is your engine starting to sound like it’s sputtering at red lights? Before you brace yourself for a massive mechanic bill, the culprit might be as small as a worn-out spark plug. As the pioneer of ignition technology, Bosch remains the gold standard for reliable engine performance. But with dozens of plug types and confusing part numbers, how do you find the exact match for your vehicle without buying the wrong one? Read on to unlock the ultimate 2026 Bosch Spark Plug Cross-Reference Guide and discover the secret to restoring your engine’s factory-fresh purr in minutes.

How to clean a battery terminal without wrecking the clamp. Corrosion on a battery post does not announce itself. Each week the starter drags a little more. You blame it on the cold, and then one morning it clicks, and the dash goes dim. The fix takes about ten minutes and a box of baking soda. Order matters more than effort. Negative cable off first. Let the soda neutralize before a brush touches metal. Dry everything. Positive cable back on last. Get the sequence wrong and a wrench can bridge both posts. That arc pits metal, and it happens faster than you would expect. Most jobs quietly fail at the clamp bore. The visible top of the post comes up clean in about thirty seconds and looks finished. The bore inside the clamp is still coated with the stuff that actually matters. That bore carries every amp going to the starter. A clamp tightened onto a dirty bore touches on a fraction of its face. You still have the slow crank you came out to fix, and a month later it is back, worse. Four surfaces matter. The post taper. The inside of the clamp. The outside of the terminal. Any green that has crept onto the ground strap. Dry it properly before anything goes back together. Water trapped under a clamp is worse than the corrosion you just removed.

Ordering the right parts requires knowing your machine’s exact age. This guide explains how to locate the data plate and decode your Yale forklift serial number to quickly identify its manufacturing year and model specs.

Governor Link: Governor link, aka governor rod, is a stiff metal wire that connects the throttle lever to the governor linkage arm.
Link Spring: Link Spring, aka anti-backlash spring, is a thin spring wrapped around the metal rod. It must hook into the exact same holes as the metal rod to eliminate physical play.
Governor Spring: It is a thick spring that connects the linkage arm to the speed control tab. It works to resist the governor’s force to control RPM.

5.9 Cummins belt diagram. The decal under your hood is the only diagram guaranteed to be right for your truck. A decade of heat cycles and a few pressure washes turn it into a blank rectangle. Then it comes down to a new belt in hand and no routing to follow. Four stages cover the 5.9 from 1989 through 2007. Within each one, an A/C truck can run a different path than a non-A/C truck. Match the engine before you match the pulley layout. First-gens are the simplest of the four to work on. The Bosch VE trucks run one multi-rib belt around the crank, water pump, alternator, and, if the truck has air, the compressor. Non-A/C builds use a shorter loop that skips the compressor pulley entirely. Same engine bay, two different belts. Ordering is where first-gen owners get burned. Dodge varied A/C configurations by build date, occasionally mid-year. The length charts floating around online do not survive that. Measure the belt in your hand. A tape run around the old belt beats any lookup table. A VIN check at the counter beats both. Tensioner drive size and release direction are worth checking on the part itself. Find the cast arrow. Find the square-drive opening. Then read the service manual for your model year before you put a bar on it.

Having a Kohler choke linkage diagram on hand facilitates the adjustment of choke control on your Kohler engine. In this part, we’ll jump into Kohler Magnum and Command choke linkage diagrams and the adjustment steps for each choke linkage. This diagram is suitable for a Kohler Command PRO Engine with a single cylinder, like CH11, CH12.5, CH13, CH14, CH15, CV11, CV12.5, CV13, CV14, CV15 and CV16. Many John Deere riding lawn mowers LT150, LT155, LX173, LX255 and Cub Cadet 1000/1500 series are running on these engines.

When a chainsaw engine is cold, it needs a “richer” fuel mixture (more fuel, less air) to ignite. The choke restricts airflow into the carburetor, temporarily increasing the fuel-to-air ratio to help start a cold engine. On Stihl chainsaws, a four-position lever, the Master Control Lever, typically controls it. This ingenious design combines four essential functions: choke, start, throttle lock and on-off switch. The choke position is usually marked with a symbol that looks like a closed circle or a line with a diagonal slash. For a cold start, you move the lever all the way down to engage it.

Standard John Deere decks don’t need timed 3-blade mower orientation to cut well. This guide covers how to install blades correctly, spot if they are upside down, and troubleshoot common cutting quality issues.

Exmark drive belt diagram guide. Removed the belt without taking a photo first? The right diagram depends on which of the three decals is on your frame. 633463, 323427, or 413206. Each model runs a different routing. Quest, Lazer Z, Turf Tracer. Use the wrong one, and you will have the belt on the wrong side of an idler within an hour. The 633463 decal shows the pump drive belt running from the engine pulley down to the twin hydro pump pulleys. The belt forms a tight triangle with a stationary idler on one side and a spring-loaded tensioner on the other. This pattern appears on most Quest S-Series and E-Series units with twin hydro pumps. The engine pulley sits at the top center. The belt wraps the two pump pulleys below the frame. One idler stays fixed; the other floats on a tension spring. Belt length runs around 30 inches on Quest models. If the belt is slipping off under load, check the spring first. A stretched or broken tensioner spring is the usual cause before the belt itself is to blame.

Understanding the colors and meanings of your Peterbilt dashboard warning lights is the key to preventing unexpected breakdowns and avoiding catastrophic engine damage. With this guide on hand, you can make informed decisions on the road and keep your operations running smoothly. When you are subjected to red warning lights, don’t wait for a minor issue to turn into expensive repairs. At FridayParts, we are dedicated to providing a vast selection of quality replacement parts for Peterbilt trucks at an affordable price. Explore now and enjoy your new rig. Keep your Peterbilt running like new and minimize your downtime.

AMSOIL and Mobil 1 oils are chemically compatible and can be mixed in emergencies. However, mixing oils may reduce the benefits of extended service intervals and specific additive packages unique to each brand. For optimal performance, it’s recommended to stick with a single brand and oil type.

Carquest filter cross reference chart. Carquest 85290, 84723, 84418, and 87033 cover most of the hydraulic and transmission filter work on John Deere, Case, Hitachi, Komatsu, and Caterpillar equipment. But only when the cross reference is actually right. 85290 lines up with WIX 51290 and Donaldson P550416. 84723 runs a similar M24 x 1.5 thread in a different can. 84418 moves up to a 1 3/4 inch mount for heavier iron. Start with the filter type. Then confirm thread size and length before ordering. Numbers that look similar often fit totally different applications. Match the thread first. Then the length. Then the micron rating. Three checks beat one guess every time. The place most owners get burned is hydraulic filtration. A filter can thread on perfectly and still be the wrong micron rating for the pump. Use the tables as a starting point and always double-check against your machine serial number.