Description

Neoplan N 9112, N 9112 L, N 9122, N 9122 L Parts Catalog

If you are wrenching on a Neoplan bus — the N 9112, N 9112 L, N 9122, or N 9122 L — and you have ever wasted an afternoon cross-referencing aftermarket part numbers that do not fit, you know the drill. Three hours with a generic parts list, two wrong gaskets, and a phone call to a dealer who tells you it was superseded five years ago. That ends here. This is the Neoplan N 9112, N 9112 L, N 9122, N 9122 L Parts Catalog — an OEM document pulled straight from Neoplan Bus GmbH. It is 499 pages of factory-level part identification, nothing else. You get the same drawings and exploded views the dealer techs use.

BG 01 MOTOR: Engine Parts Breakdown

Engine section covers the MAN D 0836 LOH 03 powerplant. Every nut, bolt, gasket, and seal is shown in correct relationship. The diagram tells you which piston ring set fits which variant. Need the oil cooler line part number? It is listed next to the illustration. This is not a repair manual — it is a parts catalog, so do not look for torque sequences here. But if you need to order a cylinder head gasket for a 12.92m or 14.33m wheelbase, the correct part number is on that page. The system uses German, English, French, and Italian labels, so language is not a barrier. Read the explanation on page 3 about directional references — left/right is in driving direction unless noted.

BG 03 KÜHLUNG: Cooling System Components

Cooling system parts are grouped under BG 03. Radiator, fan clutch, water pump, expansion tank — all broken by variant. Pay attention to the effective date codes next to each item (e.g., 06/02 means valid from June 2002). If your bus was built before or after that date, the part might differ. The catalog lists these date ranges explicitly. You order a thermostat housing gasket for an N 9112 L built in 2003? Check the date column. No guessing.

BG 05 GETRIEBE: Transmission Parts and Clutch

Transmission section (BG 05) covers the gearbox and related components. The exploded view shows the clutch assembly, shift linkage, and all internal seals. This is where you find the correct input shaft bearing part number for the ZF or Allison unit fitted to these buses. Because the catalog includes multiple variants, you need to verify your vehicle’s specific variant number listed at the top of each diagram. If no variant is listed, the part applies to all N 9112, N 9112 L, N 9122, N 9122 L models. The symbol . in the material number column points you to another group or subgroup for more context — use it.

Source Authenticity: Why OEM Beats Third-Party Manuals

I have seen aftermarket catalogs that put a generic drawing of a MAN engine and call it a day. They leave out the Neoplan-specific brackets, wiring harness clips, and air suspension fittings. This catalog is printed by NEOPLAN Bus GmbH in Stuttgart — the same company that built the bus. Every part number is tied to the original engineering release. The copyright page clearly states that reproduction without written permission is prohibited. That is your assurance it is the real deal. Compare that to a PDF someone scanned from a library copy and you see the difference. Related manuals like the Massey-Harris-Ferguson FF 30 GS 1957 Parts Catalog | OEM Fastener Guide or Futura FC200-FC400 Parts Catalog – OEM Wear Parts Specs follow the same factory-traced logic. But for a Neoplan bus, nothing else works.

BG 11 BREMSANLAGE: Braking System and Pneumatic Parts

Brakes on a bus are non-negotiable. BG 11 covers the full braking system — foundation brakes, air dryer, brake chambers, valves, and slack adjusters. The schematic shows the air lines and the exact part numbers for diaphragms, return springs, and camshafts. If you have an ABS light on a CAN-equipped bus, the electrical section (BG 15) ties into the braking system via the CAN Bus Network CAN Bus Network. You can cross-reference the wheel speed sensor part number between the two sections. That is the kind of factory integration you do not get from a generic catalog.

BG 15 ELEKTRISCHE ANLAGE: Electrical System and Wiring

Electrical section covers the entire vehicle harness, fuse boxes, relays, and component connectors. It includes the audio and video equipment (BG 16) as a subgroup. For a bus with multiple door controls and passenger information systems, having the correct connector pinout and part number for a door control module saves hours. This is not a wiring diagram — it is a parts catalog, so you get the physical component ID and its location in the bus. For understanding the principles of the internal combustion engine that powers it, see Internal Combustion Engine. But for ordering that specific alternator bracket, this catalog has it.

7 Systems Covered: From Axles to Accessories

The catalog is organized by Hauptbaugruppen (main groups). You have the rear axle (BG 07), front axle (BG 08), air suspension (BG 10), steering (BG 12), wheels and tires (BG 13), skeleton/body (BG 14), panel work and plastic parts (BG 17), heating/ventilation/AC (BG 18), equipment (BG 19), windows (BG 22), doors (BG 24), seats (BG 25), accessories and consumables (BG 26), and standard parts (BG 88). That is 18 groups covering every system on the bus. If you are rebuilding a rear axle on an N 9122 L, go to BG 07. The differential carrier part number is listed with the effective date and variant. No need to second-guess.

FAQ

Does this catalog include torque specifications or repair procedures?

No. It is a parts catalog, not a repair manual. Page 3 states: “Dieser Ersatzteilkatalog stellt keine Grundlage für eine Montage- oder Reparaturanleitung dar.” You need a separate service manual for torque values and assembly steps.

How do I determine which variant my bus is?

Check the vehicle identification plate. The catalog covers N 9112 (12.92 m), N 9112 L (14.33 m), N 9122 (12.92 m), and N 9122 L (14.33 m). Each diagram header lists the applicable variant; if none, it fits all.

Are the part numbers still current?

This is an original catalog printed at a specific publication date. Neoplan may have superseded some numbers. Use the part number with the date code shown in the catalog to check with a dealer for the latest revision.

Does the catalog cover aftermarket or generic parts?

No. Every part listed is a genuine Neoplan OEM number. The catalog explicitly warns that illustrations are subject to change due to technical development. You will not find generic cross-references.

You have the bus in the bay, the old part is off, and you need the correct replacement. Do not trust a third-party website that reprints this data with errors. Get the original factory documentation. Access the Factory Manual from AutoRepairManuals and keep it on your tablet or print the pages you need. The 499 pages of OEM data — engine, cooling, transmission, brakes, electrical, body — are ready. Related manuals for other equipment include Longagribusiness 410 DTC, 450, 450 DTC, 470 DTC, 530 DTC 2002 Parts Catalog if your shop handles agricultural gear as well. For Neoplan, this is the one.