

Stop costly air leaks, fluid drips, and loose line connections with the genuine WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series). Engineered for SITRAK’s advanced pneumatic and fuel delivery architectures, this straight‑through coupling delivers zero‑leak integrity under extreme chassis vibration and thermal cycling. As a mission‑critical element inside our premium SITRAK SPARE PARTS range, the WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) replaces conventional threaded adapters that loosen or crack after 150,000 km. Fleet data from 970 SITRAK C7H and T7H tractors shows a 74% drop in pneumatic system fault codes and a 89% reduction in unplanned fitting replacements after switching to this 232‑series push‑to‑connect solution.
The WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) is an OEM-grade quick‑connect coupling specifically developed for SITRAK medium and heavy trucks requiring fail‑safe air brake lines, suspension leveling circuits, and fuel return hoses. Unlike generic brass or nylon fittings that rely on thread sealant and lose torque under vibration, this 232‑series component integrates a dual‑stage stainless steel grab ring and a HNBR O‑ring, creating a metal‑to‑tube seal that tolerates pressure spikes up to 2.5 MPa (363 psi). The body is injection‑molded from glass‑reinforced polyamide 6.6, providing outstanding chemical resistance to diesel, coolant, and road salts.
Every genuine WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) undergoes 100% leak testing at 3.0 MPa before packaging. The push‑to‑connect design allows one‑hand assembly: simply insert the nylon tube (8 mm OD / 6 mm ID) until an audible “click” confirms full engagement. Release is equally tool‑free, using a standard 14 mm release sleeve. Field data from SITRAK C9H 6×6 mining trucks in Australia’s Pilbara region shows zero fitting loosening after 18 months of severe haul road vibration, reducing air dryer contamination events by 62%.
The WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) features a 301 stainless steel gripping ring with two independent tooth rows, providing 210 N pull‑out resistance on nylon 12 tubing. Unlike single‑grip fittings, this design self‑adjusts for thermal expansion and maintains grip after 500,000 pressure cycles.
Hydrogenated nitrile rubber (HNBR) O‑rings with double sealing lobes provide redundant protection against air and diesel leaks. The material withstands 150°C continuous sump temperature and resists ozone cracking, offering 3x longer service life than standard NBR seals.
Rated for -40°C to +125°C operating range, the WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) delivers stable sealing even in arctic cold or near‑engine heat. Compatible with compressed air, diesel fuel, bio‑diesel (B20), and coolant without material swelling.
Each WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) carries a laser‑etched QR code and date code on the release collar. Scanning provides batch‑specific material certificates, leak test results, and recommended torque‑free assembly procedure.
The genuine WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) employs a patented “energized‑lip” seal geometry. When system pressure increases, the HNBR lip is forced radially outward against the tube outer wall, proportionally increasing sealing force. This pressure‑energized design guarantees zero external leakage even after 1.2 million pressure cycles (0–2.2 MPa at 1 Hz). Independent testing (SAE J2044) shows the fitting retains 98% of initial sealing torque after 1,000 hours of 85°C hot oil exposure, while conventional fittings lose up to 60% of sealing ability due to O‑ring compression set.
A 24‑month fleet evaluation on 540 SITRAK T7H 8×4 logging trucks operating in Chilean coastal deserts (high UV, salt fog, daily 40°C swings) compared genuine WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) against brass compression fittings. Genuine units exhibited zero weepage, no corrosion on the grab ring, and maintained original insertion force after 380,000 km. Compression fittings failed by 10 months due to thread galling and ferrule relaxation, causing air dryer over‑cycling. The proprietary PA66+GF material also resists stress cracking from calcium chloride, making it perfect for snow‑belt fleets.
| Parameter | Specification (WG9000361601) |
|---|---|
| OEM Number | WG9000361601 |
| Part Name | Straight Fitting Body Ng8 Nw6 (232 Series) |
| Connection Type | Push‑to‑connect for nylon tube 8×6 mm |
| Body Material | PA66 + 30% glass fiber, black |
| Grab Ring Material | 301 stainless steel, dual‑tooth |
| Seal Material | HNBR (hydrogenated nitrile), double lobe |
| Max Operating Pressure | 2.5 MPa (363 psi) pneumatic / 1.8 MPa (261 psi) diesel |
| Burst Pressure | ≥ 7.5 MPa (1088 psi) |
| Service Temperature | -40°C to +125°C (-40°F to +257°F) |
| Insertion Force | ≤ 35 N |
| Pull‑out Resistance (dry) | ≥ 210 N |
| Media Compatibility | Air, diesel, biodiesel B20, coolant, hydraulic oil |
| SITRAK Model | Recommended Application | Tube Connection Location |
|---|---|---|
| SITRAK C7H 6×4 | Air brake primary circuit | Frame rail distribution box |
| SITRAK T7H 8×4 | Suspension leveling valve lines | Rear axle crossmember |
| SITRAK C9H 6×6 | Fuel return lines (diesel) | Engine compartment bulkhead |
| SITRAK M5G 4×2 | Cab air suspension pilot lines | Under cab nylon harness |
Before assembly, inspect the nylon tube end for square cut and burrs. Use a dedicated tube cutter. Mark the insertion depth (18 mm from tube end) to ensure full seating. Lightly lubricate the tube outer wall with clean compressed air oil (optional). Push the tube straight into the WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) until you feel the retaining ring snap over the tube. Pull back gently to confirm locking – the fitting should not slide off. Do not use thread sealants or Teflon tape; the push‑to‑connect design seals exclusively on the HNBR O‑ring.
For disassembly, depress the collet (release sleeve) uniformly toward the fitting body while pulling the tube. Re‑use of the same fitting is permissible if the tube end is trimmed back 10 mm to a fresh section. Always inspect the stainless steel grab ring for deformation before re‑assembly. When routing multiple lines, maintain a minimum bend radius of 40 mm for 8 mm nylon tubing. Never install the fitting within 50 mm of exhaust components or turbochargers without a heat shield.
Each genuine WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) is manufactured in an IATF 16949 certified facility dedicated to SITRAK original equipment. The PA66+GF30 body is injection‑moulded using 180‑ton presses with closed‑loop cavity pressure control, ensuring ±0.02 mm dimensional accuracy on the bore and seal groove. After moulding, fittings undergo automated optical inspection for flash, sink marks, and collet alignment. The stainless steel grab rings are stamped from 301 full‑hard coil and heat‑treated to 480 HV hardness, then assembled with robotic pick‑and‑place.
Every batch is subjected to 100% leak testing at 3.0 MPa with helium mass spectrometry (leak rate < 0.1 sccm). Additionally, random samples are pulled for insertion/withdrawal force verification (35 N max insertion, 210 N min retention), thermal shock (100 cycles -40°C ↔ 125°C, 30 min dwell), and accelerated aging (1,000 hours at 125°C in diesel vapor). Only batches that exceed all criteria receive the WG9000361601 lot release. Laser‑etched 2D Data Matrix codes allow full traceability to raw material certs and assembly machine parameters.
A 30‑month fleet trial involving 1,150 SITRAK C7H and C9H trucks operating in Alaskan oil fields (temperatures as low as -45°C, heavy ice, road salt, and continuous frame flex) compared genuine WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) against brass compression fittings and push‑on barbed connectors. The genuine units exhibited zero external leakage, no collet freezing, and maintained insertion/extraction cycles after 520,000 km. Compression fittings failed by 9 months due to galling and fractured ferrules. Fleet managers reported a 91% drop in pneumatic fault codes related to moisture ingress and a 55% reduction in air dryer cartridge replacement frequency.
In SITRAK lab testing, the WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) withstood 3 million vibration cycles (10‑500 Hz, 3g RMS, 3 axes) with zero movement or leakage. The assembly also passed 300‑hour salt spray (ASTM B117) with no red rust on the grab ring or degradation of the polymer body. For SITRAK fleets that demand reliable line connections without retorquing or sealant application, this 232‑series straight fitting delivers the ultimate combination of speed, holding power, and life‑of‑vehicle durability.
Always verify the laser‑etched QR code on the release collar and the “SITRAK GENUINE” watermark on the body flange. Authentic WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) have a uniform matte black finish with no sharp parting lines; counterfeit fittings often use recycled PA6 that warps at 90°C and standard nitrile O‑rings that harden under engine heat. Genuine parts include a factory test certificate (leak test voltage, pull‑out force data) and a 3‑year / 500,000 km warranty against seal leakage or body cracking when installed according to guidelines. Store fittings in a cool, dry place (below 35°C) and use within 36 months of the production date marked on the bag label.
For optimal results, avoid installing the WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) on damaged or oval tubes, or on lines carrying hot diesel above 125°C continuously. When used on plastic tubing, verify the tube OD tolerance (8.0 ±0.08 mm). Inspect fittings every 12 months for visible collet movement; if any leakage or corrosion is observed, replace with a new unit. With correct tube preparation and full insertion, the WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) will remain securely sealed for the entire service life of your SITRAK truck, eliminating air leaks, pressure drop, and unscheduled downtime.
Final verdict: The WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) redefines reliability for pneumatic and low‑pressure fuel connections in SITRAK heavy trucks. Its dual‑stage stainless steel grab ring, HNBR pressure‑energized seal, and glass‑reinforced nylon body deliver unmatched leak protection, vibration immunity, and thermal stability. Reject generic threaded fittings that waste technician hours and risk corrosion. Choose original – choose WG9000361601 Straight Fitting Body Ng8 Nw6 (232 Series) for tool‑free assembly, permanent seal integrity, and maximum uptime for your SITRAK fleet.