The fuel filter is the first line of defense against contaminated diesel fuel in the HOWO MAX 4X2 engine. A high‑efficiency fuel filter traps dirt, rust, and water, protecting expensive injectors. This genuine HOWO fuel filter kit includes the filter cover with integrated O‑ring and the replacement filter element with its own O‑ring. When you choose authentic Howo Parts, you receive a complete fuel filter service set engineered for the MC13 engine. For a full fuel system overhaul, also see our coarse filter kit.
The filter cover with O‑ring is the upper housing that seals the fuel filter assembly and directs fuel flow through the element. One cover is supplied, made from high‑pressure die‑cast aluminum with a black anodized finish. The cover incorporates an integral O‑ring groove that accepts the supplied sealing ring. The cover features a central threaded stud for securing the element, plus inlet and outlet ports machined to accept standard fuel line fittings.
The cover also includes a primer pump cavity on some versions, but this kit is for the non‑primer type. The O‑ring is pre‑installed in the cover; it is made from FPM (Viton) rubber that resists diesel fuel, heat, and aging. This cover is precision‑machined to ensure a flat sealing surface against the filter head. When the fuel filter element is replaced, the cover must be removed and the O‑ring inspected; genuine HOWO recommends replacing the O‑ring every time to prevent leaks.
The cover is reusable unless damaged, and its robust construction withstands the pulsations of the high‑pressure fuel system. A proper seal between the cover and the filter head is critical; any leak here will allow air into the fuel system, causing hard starting or rough running. Using a genuine HOWO filter cover with O‑ring guarantees correct fitment and leak‑free operation.
The fuel filter element with O‑ring is the replaceable filtration cartridge that removes contaminants from diesel fuel. One element is supplied,
rated for 5‑micron absolute filtration efficiency and a flow rate of 200 liters per hour. The element uses a high‑density cellulose/synthetic blend media with a pleated design that maximizes surface area. It also contains a water separation stage with a hydrophobic screen that repels water droplets, causing them to settle into the clear collection bowl (not included in this kit).
The element is a spin‑on type with a reinforced metal end cap that prevents collapse under differential pressure. An integrated O‑ring is pre‑lubricated and seated in a groove on the element’s top flange; this O‑ring seals the element to the filter head when installed. The element also includes a central threaded core that screws onto the cover stud. The filtration media traps particles as small as 5 microns, including rust, scale, and abrasive dust that would otherwise damage the high‑pressure injection pump and injectors. The water separation stage removes free and emulsified water, preventing corrosion and microbial growth.
This fuel filter element should be replaced every 30,000 km or more frequently if poor‑quality fuel is used. Always use a genuine HOWO element, as aftermarket units may not achieve the same efficiency and could cause injector failure. The included O‑ring must be correctly seated to prevent unfiltered fuel from bypassing the media.
Fuel filter – genuine HOWO replacement element and cover with O‑rings
| Material Encoding | Name |
|---|---|
| 201V12504-0030 | Filter cover with O-ring |
| 201V12503-0062 | Fuel filter element With O-ring |
This fuel filter element captures 99% of particles down to 5 microns, including rust, dirt, and abrasive dust that would otherwise destroy Common Rail injectors. The high efficiency ensures clean fuel reaches the injection pump.
The hydrophobic screen inside the element repels water droplets, allowing them to collect in the bowl (not included). This prevents water from reaching the high‑pressure pump, avoiding internal corrosion and seizure.
The filter cover comes with its own pre‑installed O‑ring, and the element also includes a fresh O‑ring. No need to buy separate gaskets; everything is in the box for a leak‑free installation.
This fuel filter element and cover are manufactured to the original HOWO specifications. The thread pitch, sealing surfaces, and flow characteristics match the MC13 engine exactly, ensuring no bypass or restriction.
Diesel fuel is drawn from the tank by an electric priming pump. It enters the filter head, then passes through the fuel filter element. Inside the element, the pleated media traps solid contaminants. The water separation stage uses a hydrophobic screen that forces water droplets to coalesce and fall into the collection bowl.
Clean, dry fuel then exits the filter and travels to the high‑pressure injection pump. The filter cover with O‑ring seals the top of the assembly, preventing air ingress. If the O‑ring fails, air can be sucked into the fuel system, causing hard starting or erratic running. A properly functioning fuel filter is the most important component for protecting the Common Rail injection system. Regular replacement of the fuel filter element, along with the O‑rings, is essential for engine longevity.
Before starting, relieve fuel system pressure and disconnect the battery.
Place a drain pan under the filter. Remove the old filter cover using a strap wrench or socket. Discard the old filter element and O‑ring. Clean the filter head sealing surface. Lubricate the new O‑ring on the filter element with a film of clean diesel fuel. Screw the new element onto the filter head until the gasket contacts,
then tighten an additional 3/4 turn by hand. Do not overtighten. Install the new filter cover with its integrated O‑ring, torquing to 25 Nm. Prime the system using the electric priming pump (cycle ignition on/off) or manual primer until firm resistance is felt. Start the engine and check for leaks. If leaks occur, tighten slightly or replace the O‑ring. This fuel filter element and cover set is now ready for service.
This fuel filter element and cover are specifically designed for the MC13 engine used in the HOWO MAX 4X2 tractor. They fit all production years from 2018 onward.
The element thread is M16x1.5, and the cover bolt pattern matches the original filter head. This kit is also compatible with the MC11 engine, but always verify your engine serial number before ordering. For vehicles with the hand‑primer style filter head, this cover may not fit; check your existing cover before purchase.
Inspect the water bowl (if equipped) weekly and drain any water. Replace the fuel filter element every 20,000‑30,000 km, or more frequently if poor fuel quality is suspected.
Always replace the O‑ring on the element and inspect the cover’s O‑ring for hardness or cracks; replace it if any damage is found. Never reuse old O‑rings. After changing the fuel filter, always prime the system thoroughly to avoid dry starting. Keep spare fuel filter elements and O‑rings in the truck for emergency roadside service. A clogged fuel filter can cause loss of power, black smoke, or stalling.
If the engine lacks power or emits black smoke, a restricted fuel filter is a likely cause. Replace the element. If air bubbles appear in the fuel return line, inspect the filter cover O‑ring and the element’s O‑ring for leaks. A loose filter cover can also cause air ingress.
If there is fuel leakage around the filter head, the cover O‑ring may be damaged; replace it. If the priming pump remains spongy after many strokes, the filter element may not be seated correctly. Always use genuine HOWO parts for replacement, as aftermarket elements may have incorrect O‑ring sizes or poor media efficiency.
Aftermarket fuel filter elements often use lower grade filter media that does not achieve the claimed 5‑micron rating. They may lack the water separation screen, or the O‑ring may be made from NBR instead of FPM, which hardens and leaks. The filter cover in copy kits may be made from inferior aluminum that corrodes or cracks.
Genuine HOWO fuel filter components are manufactured to the exact specifications of the original MC13 engine, using certified media, FPM seals, and precision‑machined aluminum. The small additional cost is far outweighed by the cost of replacing a set of Common Rail injectors.
The fuel filter element and cover are shipped in a recyclable cardboard box with foam inserts. The O‑rings are protected in sealed poly bags. The packaging is recyclable. The manufacturing facility is ISO 14001 certified. No hazardous substances are used in production.
This fuel filter service kit includes both items listed in the parameters table. The filter element can be ordered separately using 201V12503-0062, and the cover with O‑ring using 201V12504-0030. Authorized HOWO dealers in Nigeria stock these genuine parts. For fleet orders of ten or more kits, volume discounts are available. Always provide your engine serial number to confirm compatibility.
Fleet managers who have installed this genuine HOWO fuel filter element and cover report fewer injector failures and longer service intervals. The ease of replacement with the pre‑lubricated O‑rings has saved workshop time. The cover’s durable anodized finish resists corrosion even in coastal environments. Many operators have standardized on this fuel filter service kit for all MC13 engine maintenance.
The kit is shipped in a box measuring 20cm x 20cm x 15cm, weight 1.5 kg. Store the components in a dry indoor area. Do not remove the protective caps from the filter ports until installation. The shelf life of the element is three years when stored properly. Protect the O‑rings from direct sunlight and ozone.
We are a heavy-duty truck parts store. Please leave your contact information and inquiries. We will respond within 12 hours.
